OCE 1001 exam 1

The average depth of the world's oceans is approximately ________. * 3,682 meters (12,080 feet) * 840 meters (2,756 feet) * 5,280 meters (17,323 feet) * 2,172 meters (7,126 feet) * 11,022 meters (36,161 feet)

3,682 meters (12,080 feet)

Earth is about: 40 billion years old. 4.6 million years old. 400,000 years old. 4.6 billion years old. 6,000 years old.

4.6 billion years old

Archeological evidence suggests that boat technology was developed about ________ years ago. * 40,000 * 400,000 * 4,000,000 * 5,000

40,000

How are normal polarity and reverse polarity of Earth's magnetic field different? A compass points toward the North Pole during normal polarity and to the equator during reverse polarity. A compass points toward the South Pole during normal polarity and to the equator during reverse polarity. A compass points toward the South Pole during normal polarity and to the North Pole during reverse polarity. A compass points toward the North Pole during normal polarity and to the South Pole during reverse polarity.

A compass points toward the North Pole during normal polarity and to the South Pole during reverse polarity.

In general, what is our best evidence that the orientation of Earth's magnetic field has changed over time? A record of Earth's magnetic field is recorded in oceanic rocks, which show a clear pattern of changes in Earth's magnetic polarity. A record of Earth's gravitational field is recorded in continental rocks, which show a clear pattern of changes in Earth's gravitational polarity. A record of Earth's magnetic field is recorded in continental rocks, which show a clear pattern of changes in Earth's magnetic polarity. A record of Earth's gravitational field is recorded in oceanic rocks, which show a clear pattern of changes in Earth's gravitational polarity.

A record of Earth's magnetic field is recorded in oceanic rocks, which show a clear pattern of changes in Earth's magnetic polarity.

The first person to advance the idea of mobile continents or continental drift was: Frederick Vine. John Tuzo Wilson. Drummond Matthews. Alfred Wegener. Harry Hess.

Alfred Wegner

The four principal ocean basins (plus an additional ocean) on Earth are the: * Atlantic, Antarctic, Southern, Mediterranean, and Pacific Oceans. *Atlantic, Pacific, Indian, Southern, and Arctic Oceans. * Antarctic, Caspian, Southern, Indian, and Pacific Oceans. * Atlantic, Arctic, Mediterranean, Southern, and Pacific Oceans. * Antarctic, Arctic, Indian, Pacific, and Southern Oceans.

Atlantic, Pacific, Indian, Southern, and Arctic Oceans.

What is the chemical formula for sugar? H2O C6H12O6 CO2 C3H6O3 CHO

C6H12O6

Trilobites were dominant during which geologic period? Cambrian Devonian Ordovician Jurassic Permian

Cambrian

Which of the following is the main reason that Earth has a magnetic field? Select only one answer. Convection of the silicate materials in the asthenosphere generates a magnetic field. The Sun has such a powerful magnetic field that it creates a magnetic field on Earth. The solid inner core spins rapidly in the opposite direction as Earth rotates. Convection in the liquid iron-nickel outer core generates a magnetic field. The solid iron-nickel inner core spins rapidly in the same direction as Earth, but much faster.

Convection in the liquid iron-nickel outer core generates a magnetic field.

Of the following statements about density stratification, which is/are true? Choose all that apply. View Available Hint(s) * Density stratification has caused the highest-density material to be found at Earth's core. * The time periods of the geological time scale are based on events caused by density stratification. * Density stratification caused the oxygen crisis on Earth. * Outgassing is a direct result of density stratification. * The origin of Earth's oceans and atmosphere are a result of density stratification. * Density stratification has caused Earth's internal structure to be layered.

Density stratification has caused the highest-density material to be found at Earth's core. Outgassing is a direct result of density stratification. The origin of Earth's oceans and atmosphere are a result of density stratification. Density stratification has caused Earth's internal structure to be layered.

Which of the following statements about Earth's magnetic field is most accurate? Earth does not have a regular magnetic field. Earth's magnetic field switches polarity at irregular time intervals. Earth's magnetic field does not switch polarity. Earth's magnetic field switches polarity at regular time intervals.

Earth's magnetic field switches polarity at irregular time intervals.

Which of the following parts of Polynesia was populated last? * Marquesas * New Zealand * Easter Island * Fiji, Tonga, and Samoa * Hawaiian Islands

Easter Island

Who is credited with being the first person to accurately determine Earth's circumference? * Erik Thorvaldson * Claudius Ptolemy * Eratosthenes * Christopher Columbus * Pytheas

Eratosthenes

The first person we are aware of who determined the circumference of the Earth using trigonometry and the angle of sunlight at Alexandria, Egypt, was: * Ptolemy. * Seneca. * Herodotus. * Pytheas. * Eratosthenes.

Eratosthenes.

Who was killed in the Philippines during his last sea voyage after a skirmish with local people? * Vasco da Gama * James Cook * Giovanni Caboto * Prince Henry the Navigator * Ferdinand Magellan

Ferdinand Magellan

The book The History of Ocean Basins, which contained the idea of seafloor spreading, was written by geologist: John Tuzo Wilson. Drummond Matthews. Harry Hess. Frederick Vine. Alfred Wegener.

Harry hess

What happened to the nebular gas that remained from the formation of the planets and their satellites? * It escaped into the vacuum of space. * It condensed to form Earth's ocean. * It was blown away by the solar wind. * It is about 10% of the modern earth atmosphere.

It was blown away by the solar wind.

Who left Spain in September 1519 and became the first person to complete a circumnavigation of the globe when he returned to Spain three years later? * Juan Sebastian del Caño * Ferdinand Magellan * Vasco Nunez de Balboa * Vasco da Gama * Giovanni Caboto

Juan Sebastian del Caño

Of the following statements about ocean crust, which is/are true? Choose all that apply. Ocean crust is destroyed at deep sea trenches. Ocean crust is created at deep sea trenches. Ocean crust is created at the mid-ocean ridge. Ocean crust is destroyed at the mid-ocean ridge. Ocean crust is destroyed at transform faults.

Ocean crust is destroyed at deep sea trenches. Ocean crust is created at the mid-ocean ridge.

The first recorded circumnavigation of Africa was made by the ________. *Chinese *Greeks *Polynesians *Phoenicians

Phoenicians

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern. * Christopher Columbus * Ptolemy * Ferdinand Magellan *Vasco de Gama *John Cabot

Ptolemy

The method of determining latitude in the Northern Hemisphere by measuring the angle between an observer's line of site to the North Star and line of site to the northern horizon was developed by: * Seneca. * Herodotus. * Ptolemy. * Eratosthenes. * Pytheas.

Pytheas

Which of the following ideas support our current scientific understanding of the development of life on Earth? Choose all that apply. * The "prebiotic soup" of the primitive oceans provided favorable conditions for life to develop. * Primitive life likely existed without the need for oxygen. * The most primitive life on Earth needed sunlight to metabolize food. * Early organisms evolved into more-complex organisms over geologic time. * As life evolved it significantly changed Earth's environment.

The "prebiotic soup" of the primitive oceans provided favorable conditions for life to develop. Primitive life likely existed without the need for oxygen. Early organisms evolved into more-complex organisms over geologic time. As life evolved it significantly changed Earth's environment.

Based on definition, it is more appropriate to consider which ocean as a sea? * The Pacific Ocean * The Atlantic Ocean * The Indian Ocean * The Arctic Ocean * The Antarctic Ocean

The Arctic Ocean

Which ocean is the shallowest ocean in the world? * The Pacific Ocean * The Atlantic Ocean * The Indian Ocean * The Arctic Ocean * The Antarctic Ocean

The Arctic Ocean

How did the Moon form? * The Moon formed due to the impact of a Mars-sized body with the Earth. * The Moon erupted from the Earth leaving a scar at the Pacific Ocean. * The Moon was captured by the gravitational pull of the Earth. * The Moon formed at the same time as the Earth due to simultaneous accretion.

The Moon formed due to the impact of a Mars-sized body with the Earth.

Which ocean covers more than half of the ocean surface area on Earth? The Pacific Ocean The Atlantic Ocean The Indian Ocean The Southern Ocean The Antarctic Ocean

The Pacific Ocean

Of the following statements about the asthenosphere, which is/are true? Choose all that apply. View Available Hint(s) * The asthenosphere will fracture under extreme pressure. * The asthenosphere is composed of liquid molten rock. * The asthenosphere is very hot and contains areas of partially molten rock. * The asthenosphere is composed of solid rocks associated with the rigid mantle. * The asthenosphere consists partially of crust and partially of mantle. * The asthenosphere is a highly viscous layer located beneath the lithosphere.

The asthenosphere is very hot and contains areas of partially molten rock. The asthenosphere is a highly viscous layer located beneath the lithosphere.

Of the following statements about Earth's magnetic field, which is/are true? Choose all that apply. The lines of the magnetic force are perpendicular relative to Earth's surface at the magnetic south pole. The magnetic north pole may reverse so that it is located near the geographic south pole. The lines of the magnetic force are perpendicular relative to Earth's surface at the magnetic north pole. The lines of the magnetic force are parallel with Earth's surface at the equator. Magnetic north is at the same point on Earth as the geographic north pole.

The lines of the magnetic force are perpendicular relative to Earth's surface at the magnetic south pole. The magnetic north pole may reverse so that it is located near the geographic south pole. The lines of the magnetic force are perpendicular relative to Earth's surface at the magnetic north pole. The lines of the magnetic force are parallel with Earth's surface at the equator.

Which of the following statements is true of the lithosphere? * The lithosphere is composed of metamorphic rock. * The lithosphere is composed of outer mantle material. * The lithosphere is composed of igneous rock. * The lithosphere is composed of the crust and the uppermost portion of the mantle. * The lithosphere is composed of the inner portion of the mantle and the outer core.

The lithosphere is composed of the crust and the uppermost portion of the mantle.

What happened when Mr. Trujillo hit the Silly Putty with his hammer? * The material fractured like a solid. * The material remained unaltered and did not fracture or splash. * The material splashed like a liquid. * The material flattened like a pancake without fracturing or splashing.

The material fractured like a solid.

Alfred Wegener's continental drift hypothesis received much hostile criticism and ridicule from the scientific community because of which of the following? * There was no correlation of rocks found in adjacent positions on matching continents * His correlation of fossils was false; they were different species. * There is no evidence of past glacial activity in areas that are now tropical. * The mechanism he proposed for the movement of the continents.

The mechanism he proposed for the movement of the continents.

Why does the sea floor have a striped pattern of magnetic anomalies that is symmetric with respect to the mid-ocean ridge? Choose all that apply. The ocean floor is spreading apart and new sea floor is forming. The polarity of Earth's magnetic field experiences reversals. The igneous rock of the ocean floor preserves Earth's existing magnetic field as the rock cools. Polar reversals cause existing ocean crust to remagnetize. Marine organisms that live on the sea floor have caused this pattern.

The ocean floor is spreading apart and new sea floor is forming. The polarity of Earth's magnetic field experiences reversals. The igneous rock of the ocean floor preserves Earth's existing magnetic field as the rock cools.

Of the following statements about the age of the ocean crust, which one is true? Select only one answer. The oldest ocean crust is about 200 million years old and is located near an ocean trench. The oldest ocean crust is about 200 million years old and is located near the mid-ocean ridge. The oldest ocean crust is about 2 million years old and is located near an ocean trench. The oldest ocean crust is about 2 million years old and is located near the mid-ocean ridge. The oldest ocean crust is about 4.5 billion years old and is located near the edge of a continent.

The oldest ocean crust is about 200 million years old and is located near an ocean trench.

Which of the following statements is/are true regarding Earth's core? Choose all that apply. * The inner core is liquid because it is so hot. Earth's core is composed of two layers that differ in chemical composition. * The outer core is liquid because it is so hot. * The core is composed of mainly iron and nickel, with some sulfur. * Earth's core is composed of two layers that differ in physical properties.

The outer core is liquid because it is so hot. The core is composed of mainly iron and nickel, with some sulfur. Earth's core is composed of two layers that differ in physical properties.

How do plants and animals gain the energy needed to carry out cellular functions? They utilize the energy in carbon dioxide. They utilize the energy in sugar. They utilize photosynthesis. They utilize the energy from the sun to make sugar

They utilize the energy in sugar.

According to the Geologic Time Scale, which selection lists the correct order of coexistence, from earliest to latest? View Available Hint(s) * Trilobites and amphibians, insects and dinosaurs, dinosaurs and birds, flowering plants and fishes, humans and reptiles * Trilobites and amphibians, insects and dinosaurs, dinosaurs and birds, humans and reptiles, flowering plants and fishes * Trilobites and amphibians, dinosaurs and birds, insects and dinosaurs, flowering plants and fishes, humans and reptiles * Trilobites and amphibians, insects and dinosaurs, flowering plants and fishes, dinosaurs and birds, humans and reptiles * Insects and dinosaurs, trilobites and amphibians, dinosaurs and birds, flowering plants and fishes, humans and reptiles

Trilobites and amphibians, insects and dinosaurs, dinosaurs and birds, flowering plants and fishes, humans and reptiles

Who is credited with being the first European to see the Pacific Ocean? * Juan Sebastian del Caño * James Cook * Vasco Nunez de Balboa * Ferdinand Magellan * Vasco da Gama

Vasco Nunez de Balboa

The important contribution to navigation made by Eratosthenes in the third century BC was __________. View Available Hint(s) * discovery of a trade route from Europe around the African continent to India * the introduction of latitude and longitude lines on maps of the world * exploration outside the Mediterranean and into the North Atlantic Ocean * a reasonably accurate calculation of the circumference of our planet * devising a means of fixing longitude while at sea

a reasonably accurate calculation of the circumference of our planet

Radioactive materials can sometimes be used to determine the: chemical composition of rocks. ages of rocks. metamorphism. origin of rocks. formation method.

ages of rocks

The nebular hypothesis suggests that: * all bodies in the solar system formed from an enormous gas cloud. * galaxies such as the Milky Way form independent of one another. * the Earth was formed by a cosmic explosion, a "big bang." * the moon is derived from a protoplanet. * Earth's moon is an asteroid captured by the Earth's gravity.

all bodies in the solar system formed from an enormous gas cloud.

Isostatic adjustments are the result of the buoyancy of Earth's lithosphere as it floats on the ________ below which is denser and plastic like. inner core mesosphere outer core asthenosphere

asthenosphere

Oceanic crust is primarily: * basalt. * granite. * clay minerals. * siltstone. * carbonate sedimentary rocks.

basalt

Which of the following rocks is the most reliable one used to collect information about Earth's magnetic field where and when the rock originated? Granite Basalt Limestone Sandstone Schist

basalt

According to the fossil record on Earth, the earliest-known life-forms lived in sea floor rocks about 3.5 ________ years ago. thousand billion trillion million

billion

Earth's atmosphere became oxygen rich about 2.45 ________ years ago. thousand billion trillion million

billion

Evidence suggests that the Sun and the rest of the solar system formed about five ________ years ago. * billion * trillion *million *thousand

billion

One of the reasons that free oxygen in our atmosphere is important to the development and maintenance of life on Earth is because oxygen: * reduces atmospheric temperature. * can form ozone and block some UV radiation. * is necessary for photosynthesis to occur. * was very abundant in Earth's early atmosphere. combines with iron in volcanic rocks.

can form ozone and block some UV radiation.

Earth's early atmosphere most likely included: hydrogen, helium, and oxygen. * carbon dioxide, water vapor, ammonia, and methane. * ammonia, oxygen, carbon dioxide, and water vapor. * nitrogen, ozone, and sulfur dioxide. * all the above.

carbon dioxide, water vapor, ammonia, and methane.

Although Earth's oceans have existed since early in the formation of the planet, its ________ must have changed. color distribution chemical composition physical state textural makeup

chemical composition

In the figure above, which illustrates Earth's major layers. Which layer is represented by the letter B? oceanic crust lithosphere asthenosphere continental crust mantle

continental crust

contains iron and nickel contains a liquid outer layer and a solid inner layer

core

is Earth's stiff, rigid, rocky shellpart of this layer has a relatively homogeneous composition, while the other part is less uniform in composition

crust

Plate convergence begins during which stage of the Wilson Cycle? Juvenile Suturing Mature Terminal Declining

declining

The separation of the Earth into layers while it was molten was the result of the: * differing densities of the elements that make up the Earth. * initial collection of materials and their position in Earth. * presence of water at Earth's surface. * gravitational force created by the rotating Earth. * decrease in temperature downward toward the core.

differing densities of the elements that make up the Earth.

Which type of plate boundary is most closely associated with the formation of new ocean floor? divergent transform hot spot convergent

divergent

The Mid-Atlantic Ridge is an example of a: convergent plate boundary (continent-continent). transform fault boundary. divergent plate boundary. convergent plate boundary (oceanic-oceanic). convergent plate boundary (continent-oceanic).

divergent plate boundary

Which of the following is an example of the embryonic stage of the Wilson Cycle? Pacific Ocean Red Sea Mediterranean Sea Atlantic Ocean East Africa

east Africa

All continents fit together with the least number of overlaps and gaps when the continents are matched along ________. * edges of the deep sea floor * oceanic trenches in subduction zones * current shorelines * the edge of the continental shelf * edges at around 2,000 meters depth

edges at around 2,000 meters depth

How often does the Earth's magnetic field switch polarity? every 10,000 to 50,000 years every 500,000 years every 10,000 to 100,000 years every 100,000 to several million years

every 100,000 to several million years

Which of the following lines of evidence did Alfred Wegener use to support the concept of drifting continents? Choose all that apply. * evidence of glaciers in areas that are now tropical * the pattern of similar mountain belts on different continents * the distribution of species of fossils * the composition of meteors from outer space * the way the shapes of the continents fit together like pieces of a jigsaw puzzle

evidence of glaciers in areas that are now tropical the pattern of similar mountain belts on different continents the distribution of species of fossils the way the shapes of the continents fit together like pieces of a jigsaw puzzle

The study of the structure of the sea floor and how the sea floor has changed through time is an example of ________ oceanography. * archaeological * chemical * geological * biological *physical

geological

A cometary model of the formation of Earth's ocean must include the chemical difference between the ________ in comet ice and that in Earth's water. oxygen carbon hydrogen nitrogen

hydrogen

A tentative, testable statement about the general nature of a phenomenon is called a/an: observation. * law. * guess. * theory. * hypothesis.

hypothesis

Moving from an oceanic ridge to an oceanic trench, the thickness of the lithosphere: remains the same. randomly varies. increases in proportion to the distance. decreases in proportion to the distance. is unrelated to the distance from the ridge.

increases in proportion to the distance

Rocks in which layer(s) of Earth are rigid? Choose all that apply. inner core mesosphere asthenosphere lithosphere outer core

inner core mesosphere lithosphere

The explorer who advanced oceanography by introducing systematic soundings, or depth measurements, was __________. View Available Hint(s) Jacques Piccard James Cameron Christopher Columbus Leif Erikson James Cook

james cook

Climate distribution on Earth is primarily controlled by: plants and animals that live in an area. Earth's geologic history. latitude. longitude. presence or absence of glacial debris.

latitude

In the figure above, which illustrates Earth's major layers. Which layer is represented by the letter C? mesosphere mantle lithosphere crust asthenosphere

lithosphere

Which of the following is Earth's rigid layer that includes the crust plus the topmost portion of the mantle? Asthenosphere Inner core Lithosphere Mesosphere Outer core

lithosphere

Tectonic plates are pieces of the ________ that float on the more fluid ________ below. mantle; crust asthenosphere; lithosphere lithosphere; asthenosphere crust; lithosphere lithosphere; mesosphere

lithosphere; asthenosphere

contains a weak layer below the lithosphere contains rock rich in magnesium and iron.

mantle

What is the basis for relative positions of Earth's physical layers? View Available Hint(s) * material weight * material temperature, with the hottest material on the surface and the coolest material in the center * material density, with the most-dense material on the surface and the least-dense material in the center * material temperature, with the coolest material on the surface and the hottest material in the center * material density, with the least-dense material on the surface and the most-dense material in the center

material density, with the least-dense material on the surface and the most-dense material in the center

Which of the following fossils was used as data to help reconstruct Pangea because it was a reptile found in South America and Africa? Mesosauras Lepidodendron Glossopteris Archaeopteris

mesosaurus

Where would you expect to see alternating bands of rock with different magnetic polarities? on both sides of the mid-ocean ridge on the oldest side of the mid-ocean ridge on the youngest side of the mid-ocean ridge on the fastest-moving side of the mid-ocean ridge on the slowest-moving side of the mid-ocean ridge

on both sides of the mid-ocean ridge

Which of the following is Earth's liquid iron-nickel layer? Asthenosphere Inner core Lithosphere Mesosphere Outer core

outer core

Earth's second atmosphere formed from ________. * outgassing * the Sun's solar wind * leftover gases from the nebula * comet vaporization

outgassing

What are the reaction products of photosynthesis? sugar and sunlight nitrogen gas and sugar oxygen gas and sugar oxygen gas and carbon dioxide gas water and carbon dioxide gas

oxygen gas and sugar

The study of historical changes of continental shapes and positions is called: paleogeography. sedimentology. paleomagnetism. paleoclimatology.

paleogeography

Which of the following was not used as evidence for continental drift? Past glacial activity The distribution of organisms Paleomagnetic reversals Matching sequences of rocks The fit of the continents

paleomagnetic reversals

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern. Gondwanaland Tethys Sea Panamerica Panthalassia Pangaea

panamerica

The study of the transmission of light and sound in the oceans is an example of ________ * oceanography. * archaeological * biological * geological * chemical * physical

physical

Earth's current atmosphere supports animal life because __________. View Available Hint(s) * the oceans have provided water vapor * bacterial action has produced essential methane * plant photosynthesis provides oxygen that is critical for aerobic respiration * plant photosynthesis has provided carbon dioxide * volcanic outgassing produced essential nitrogen and argon

plant photosynthesis provides oxygen that is critical for aerobic respiration

Fossils of ancient tropical plants are currently found near the poles because the: * poles were at the equator at times in the geologic past. * plants probably were tolerant of both tropical and polar conditions. * plants were distributed to current locations by ancient glacial ice sheets. * plants lived in the tropics, but landmasses have drifted to current locations. * entire earth had warm, humid conditions at the time the plants were living.

plants lived in the tropics, but landmasses have drifted to current locations.

What type of organisms utilize photosynthesis? primary producers phytoplankton heterotrophs fish autotrophs

primary producers phytoplankton autotrophs

Wegener used which of the following to provide evidence for continental drift? Locations of active volcanoes Shape of continental margins Earthquake distribution Seafloor magnetic patterns Magnetic pole reversals

shape of continental margins

Our world ocean can be divided into four principal oceans plus an additional ocean, based on the ________ of the ocean basins and the ________ of the continents. * position; latitude * shape; position * depth; elevation * size; shape

shape; position

What common household item is used in this video to demonstrate the properties of the asthenosphere? a balloon Silly Putty oil and vinegar salad dressing a can of soda

silly putty

As shown in this video, Silly Putty will flow when stress is applied __________ and Silly Putty will fracture when stress is applied __________. slowly, rapidly rapidly, rapidly slowly, slowly rapidly, slowly

slowly, rapidly

Examine the five words and/or phrases and determine the relationship among the majority of words/phrases. Choose the one option that does not fit the pattern. Frederick Vine Alfred Wegener Harry Hess Drummond Matthews Stanley Miller

stanley miller

The Himalaya Mountains are an example of the ________ stage of the Wilson Cycle. mature juvenile declining terminal suturing

suturing

The largest geographic feature on the surface of Planet Earth is __________. View Available Hint(s) * Eurasia * the Antarctic ice cap * Africa * the Atlantic Ocean the Pacific Ocean

the Pacific Ocean

Which ocean is the deepest ocean in the world? The Pacific Ocean The Atlantic Ocean The Indian Ocean The Southern Ocean The Antarctic Ocean

the Pacific Ocean

Frederick Vine and Drummond Matthews determined that new ocean floor was being produced at ocean ridges by examining: the magnetic pattern of rocks on the seafloor. glacial debris at various locations. fossils in marine sediments. the location of ancient coral reefs. apparent polar wandering.

the magnetic pattern of rocks on the seafloor.

Plate tectonics and evolution, which are held with a high degree of confidence because of rigorous testing and verification, are examples of: * hypotheses. * theories. * guesses. * observations. * laws.

theories

Compared to continental crust, oceanic crust is generally __________. View Available Hint(s) * thinner, less dense, lighter in color, and higher in elevation * thicker, denser, darker in color, and at lower elevations * thicker, less dense, darker in color, and lower in elevation * thicker, less dense, lighter in color, and higher in elevation * thinner, denser, darker in color, and at lower elevations

thinner, denser, darker in color, and at lower elevations

What are the reaction products of respiration? oxygen gas and sugar water and carbon dioxide gas oxygen gas and carbon dioxide gas sugar and energy nitrogen gas and oxygen gas

water and carbon dioxide gas

Current scientific knowledge indicates that the most likely origin of most of Earth's oceans was due to ________. * water-bearing minerals found in meteorites * comets from outer space * water vapor released from volcanic outgassing * release of liquid water from the core

water vapor released from volcanic outgassing

What does the term "asthenosphere" literally mean? viscosity sphere deep sphere hot sphere weak sphere flexible sphere

weak sphere