final exam 2

Clean, dry air is primarily ___ gas. a. nitrogen and oxygen b. nitrogen and methane c. oxygen and carbon dioxide d. methane and carbon dioxide e. argon and nitrogen

a

They are the plate boundaries where plates slide past each other. a. What are transform boundaries? b. What are convergent boundaries? c. What are divergent boundaries?

a

They mark subduction zones in the Pacific and are adjacent to island arcs or continents. a. What are middle-ocean ridges? b. What are trenches? c. What are continental margins?

b

True a. Mountains are only formed by continental collision b. Mountais can also be formed by extension c. All mountains are volcanoes

b

The greater the concentration of _____ in the atmosphere, the higher the Earth's temperature. a. nitrogen b. oxygen c. carbon dioxide d. calcium carbonate

c

The secondary (or S) waves of an earthquake are also known as: a. surface waves b. short waves c. shear waves d. seismic waves

c

What type of magma is produced at the highest temperatures? a. Rhyolitic b. Andesitic c. Basaltic d. Dacitic

c

69

nice

Order of the 3 seismic waves

P waves, S waves, surface waves

what is In coastal areas, there are two low ones and two high ones every 24 hours.

Tides

It is the composition of the continental crust. a. What is granite? b. What is basalt? c. What is andesite? d. What is limestone?

a

What evidence supports the hypothesis of sea-floor spreading? a. Oceanic crust gets older as we move away from ridges b. Older crust found in deeper water c. Patterns of alternating magnetic bands d. Hawaiian volcanoes e. Oceanic crust gets younger as we move away from ridges

a, b, c, and d

Basaltic. a. What is the composition of composite cone/stratovolcanoes? b. What is the compisiton of shield volcanoes? c. What is the composition of the mantle? d. What is the composition of the continental crust?

b

It is the layer of the Earth where the magnetic field is generated. a. What is the crust? b. What is the mantle? c. What is the asthenosphere? d. What is the outer core? e. What is the inner core?

d

What is the main energy source used to generate electricity at ISU and Ames? a. Wind b. Coal c. Biomass d. Natural gas

b

It is one of the gases that keep the Earth comfortably warm. a. What is ozone? b. What is nitrogen? c. What is carbon dioxide? d. What is sulfur dioxide?

c

The composition of the continental crust is: a. Basaltic b. Mafic c. Granitic d. Ultramafic

c

Movement of Seismic Waves

p - accordion cant travel through water s - up and down like ocean waves surface - do both

what is the age of the oldest sediments recovered from deep-ocean drilling

180 million

The Andes Mountains are an example of a(an): a. divergent boundary b. ocean-ocean convergent boundary c. ocean-continent convergent boundary d. transform boundary e. continent-continent convergent boundary

c

It is the eon that constitutes most of Earth's history. a. What is the Paleozoic? b. What is the Mesozoic? c. What is the Cenozoic? d. What is the Precambrian?

d

True or false: Alaska is the top oil producing state in the US.

False,Texas is the top producing state

How do human released aerosols influence the global climate? a. Aerosols increase the abundance of clouds which reflect incoming solar radiation. This cools the earth. b. Aerosols increase the abundance of clouds which reflect incoming solar radiation. This warms the earth. c. Aerosols increase the abundance of clouds which absorb incoming solar radiation. This cools the earth. d. Aerosols increase the abundance of clouds which absorb incoming solar radiation. This warms the earth.

a

In order to determine the age of a rock, we need to know all of these with the exception of: a. Amount of parent at the time of the formation of the rock b. Amount of parent at present time c. Amount of daughter at present time d. Half-life of parent

a

It is a fault with the hanging wall moved down with respect to the footwall. a. What is a normal fault? b. What is a reverse fault? c. What is a strike-slip fault? d. What is a thrust fault?

a

Ordinary ocean waves derive their energy from: a. Winds b. Tides c. Gravity d. Solar heat

a

The plate boundaries where rocks are under tensile stress. a. What are divergent boundaries? b. What are transform boundaries? c. What are convergent boundaries?

a

They have intense seismic activity, chaotic land-derived sediments, narrow shelves, and steep slopes. a. What are active continental margins? b. What are passive continental margins? c. What are cratons?

a

What is not a principle used for relative age dating? a. Gravity b. Cross-cutting relationships c. Superposition d. Original horizontality

a

What type of magma has the highest viscosity? a. Rhyolitic b. Andesitic c. Basaltic e. Dacitic

a

Which of the following locations does NOT currently have glaciers? a. Ecuador b. Norway c. Antarctica d. Scotland

a

How might melting permafrost influence the global climate? a. Cause sea level rise b. Release CO2 and methane into the atmosphere c. Decrease the albedo of permafrost regions d. Lead to a loss of water sources for humans

b

Is recyclable aluminum renewable? a. Yes b. No c. Don't know

b

It is the main controlling factor in the development of deserts. a. What is temperature? b. What is precipitation? c. What is wind?

b

It is the metamorphism that occurs around an igneous intrusion. a. What is regional metamorphism? b. What is contact metamorphism? c. What is hydrothermal metamorphism?

b

It is the ratio between parent and daughter isotopes after 3 half-lives. a. What is 1:1? b. What is 1:7? c. What is 1:3? d. What is 3:1?

b

It is the rock that makes up volcanic arcs and island arcs at convergent plate boundaries. a. What is granite? b. What is andesite? c. What is basalt?

b

It is the zone over which lithospheric plates move. a. What is the mantle? b. What is the asthenosphere? c. What is the crust?

b

What is the absorption of longwave radiation by gases in the atmosphere known as? a. albedo b. the greenhouse effect c. climate change d. global warming

b

Where do glaciers develop? a. on both land and ocean b. on land c. in the atmosphere d. on the ocean surface

b

Which country has the greatest installed capacity of wind turbines worldwide? a. Denmark b. China c. United States d. Australia

b

Which form of renewable energy is produced by power plants in The Geysers, California and Larderello, Italy? a. Hydroelectric power b. Geothermal power c. Tidal energy d. Solar power

b

Which is the densest layer of the Earth? a. Outer core b. Inner core c. Mantle d. Crust

b

Which of the following statements is characteristic of a snow line? a. It occurs near sea level at the equator. b. It varies with altitude. c. It represents the elevation below which snow remains throughout the year. d. It does not vary with altitude.

b

Which type of hard stabilization increases beach erosion? CHOOSE ALL THAT APPLY. a. Breakwater b. Groin c. Jetty d. Beach nourishment e. Berm

b and c

20,000 years ago a. When did humans evolve? b. When did humans arrive in North America? c. When was the Last Glacial Maximum? d. When did dinosaurs become extinct?

c

A rock resulting from contact metamorphism will not have: a. Larger crystals than the unmetamorphosed rock b. New minerals c. Foliation d. Silicate minerals

c

It is a plume of magma rising from the mantle. a. What is a volcanic dyke? b. What is a sill? c. What is a hot spot? d. What is a magma chamber?

c

It is divided into three basic units: continental margins, mountain belts, and cratons. a. What is the oceanic crust? b. What is the continental platform? c. What is the continental crust?

c

They are a chain of volcanic islands formed by an oceanic hot-spot. a. What are the Philippines? b. What are the Aleutians? c. What are the Hawaiian Islands?

c

What characteristic distinguishes a renewable resource from a non-renewable resource? a. Ease of harvesting resource b. Location of resource c. Time to replenish resource d. Total amount of resource

c

Which of the choices below is the largest contributor to global warming? a. refrigerant leakage b. aerosol spray cans c. Styrofoam cups d. deforestation

d

Which of these rocks is not metamorphic? a. Schist b. Slate c. Marble d. Shale

d

Which resource below is NONRENEWABLE? a. plants for food b. trees for lumber and paper c. solar power d. natural gas

d

A magnetic band is located 20 Km from the central rift valley of the mid-ocean ridge and is one million years old. What is the spreading rate at that point in cm/year?

2

what is the age of the oldest continental rocks

4 billion years

How old is the Earth?

4.6 billion years old

what is the most abundant group of minerals in the crust.

silicates

What is the fastest growing renewable energy?

wind

It is a non-renewable energy resource. a. What is wind? b. What is timber? c. What is coal? d. What is biomass?

c

expresses the decay rate of a radioactive isotope.

half life