Oceanography True or False
All continents fit together with the lest humber of overlaps and gaps when the continents are matched along current shorelines.
False
An eastern boundary current is generally narrow and swift.
False
Biogenous sediment usually contains abundant calcite below the calcite compensation depth.
False
Current scientific knowledge indicates that the most likely organon of most of Earth's oceans was due to comets from outer space.
False
Harry Hess was the first person to advance the idea of continental drift.
False
Hot spots are characteristics of oceanic-oceanic convergent plate boundaries.
False
Many of the unique properties of water are attracted to the fact that water exists in three states of matter on Earth's surface.
False
Organisms found at mid-ocean ridges are able to survive in the absence of sunlight because the light generated by the undersea lava flows is enough for photosynthesis to occur.
False
Our planet's extreme climate is one of the main reasons life exists on Earth.
False
Rogue waves are generated by destructive interference patterns of ocean swells.
False
Surface currents affect about 90% of the world's ocean water.
False
Surface or wind-driven currents move water primarily in a vertical direction in the ocean.
False
Terrigenous sediment is another name for biogenies sediment.
False
The Arctic Ocean is mostly, but not entirely, in the southern hemisphere
False
The Atlantic Ocean is the shallowest ocean in the world
False
The Pacific Ring of Fire is home other majority of Earth's active volcanoes and large earthquakes because of the prevalence of divergent plate boundaries along the Pacific Rim.
False
The San Andreas Fault is associated with volcanic activity.
False
The White Cliffs of Dover are made from a total of five coccolithophores tests.
False
The four principal ocean basing (plus an additional ocean) on Earth are the Atlantic, Antarctic, Southern, Mediterranean.
False
The lithosphere is composed only of outer mantle material.
False
The speed of a shallow water wave is a function of wave period.
False
The transfer of water between the atmosphere, the oceans, and the continents is known as the geologic cycle.
False
The vertical distance between the wave trough and the wave crest is the wavelength.
False
Thermohaline circulation is wind-driven.
False
Western boundary currents such as the Gulf Stream transport warm water from the tropics towards higher latitudes.
False
A fracture zone is seismically inactive, occurs beyond offset mid-ocean ridge segments, and the relative movement between two points on either side of the feature is in the same direction.
True
A very important way to increase the settling rate of fine particles in the open ocean is via fecal pellets.
True
A wave train moves more slowly than individual waves.
True
Along the margins of the Pacific are found most of Earth's oceanic trenches.
True
An area of the ocean where rapid change in ocean density occurs with a change in depth is the pycnocline.
True
Deep ocean currents often move cold, dense water away from the poles and have characteristic temperatures and salinities.
True
Deep water waves move faster than shallow water waves because they are not sowed by friction with the ocean bottom.
True
Few abyssal plains are located in the Pacific Ocean because the deep-ocean trenches found on the convergent active margins of the Pacific Ocean prevent sediment from moving past the continental slope.
True
In the northern hemisphere, Ekman transport pushes surface water to the right of the wind direction.
True
Marine sediment accumulations are interesting to oceanographers because they often contain microscopic fossils that provide clues to the past geographic distributions of marine organisms.
True
Microscopic biogeneous ooze is common on the deep ocean floor because there is so little lithogenous sediment deposited at great distances from the continents that could dilute the biogenies material.
True
Most of the physical properties of pure eater and seawater are very similar because seawater is 96.5% water
True
Radioactive materials can sometimes be used to determine the ages of rocks.
True
Satellites are used to map the ocean floor because the shape of the ocean surface reflects large features on the seafloor.
True
Stanley Miller's 1952 experiment created organic compounds from the chemical ingredients thought to exist in Earth's early ocean.
True
The European "Age o fDiscovery" began with Christopher Columbus' discovery of the "New World".
True
The Himalaya Mountains are an example of continental-continental convergent plate boundary.
True
The Mid-Atlantic Ridge is an examples of a divergent plate boundary.
True
The Pacific Ocean is associated wit the most tsunamis.
True
The Protoearth's structure was homogeneous
True
The Sun and the rest of the solar system formed about 5 billion years ago from a huge cloud of dust and gas called a nebula.
True
The circular movement of surface water currents are driven by the major wind belts are called gyres.
True
The deepest part of the ocean exceeds the height of Mount Everest.
True
The orbital motion of water molecules in a wave goes down to a depth equal to the wavelength divided by two.
True
The seafloor magnetic pattern is best described as parallel to and symmetric about mid-ocean ridges.
True
Thick sediment accumulations occur on the continental shelves and rises, especially near the mouths of major rivers because these locations are close to major sources of lithogenous sediment.
True
Tsunamis can be generated by geological activity that causes a sudden change in sea floor elevation such as submarine fault motion.
True
Volcanoes on the seafloor that are flat-topped because of wave erosion are called tablemounts.
True
Wind speed, duration, and fetch are the three conditions necessary to produce a fully developed sea.
True
Abyssal clays are commonly red-brown or buff in color because they contain gypsum.
False
Active continental margins are characterized by broad continental shelves.
False
A shallow åter wave must form in water depth less than 100 meters.
False
A tentative, testable statement about the general nature of a phenomenon is called a theory.
False
A wave will break when wave steepness is equal to 1/20.
False
A curling wave formed over an air pocket is called a plunging breaker
True