Earth Systems

Which layer of Earth is composed primarily of iron and nickel?

• the core

• the crust

• the asthenosphere

• the mantle

Subduction

• is the result of a hot spot moving near a plate boundary

• occurs when one plate passes under another

• occurs when oceanic plates diverge and form volcanoes

• is the process in transform boundaries that results in earthquakes

Which rock is formed at high temperatures and pressures?

• Igneous

• Metamorphic

• Sedimentary

What are the five primary factors for soil formation?

• climate, parent material, pH, organisms, topography

• parent material, topography, organisms, time, latitude

• parent material, climate, pH, latitude, altitude

• climate, parent material, topography, organisms, time

Which is the correct order of soil horizons starting at the surface?

• A, B, C, E, O

• O, A, B, C, E

• O, E, A, B, C

• O, A, E, B, C

Why type of soil would be best to add to the bottom of a constructed pond, where the goal is to have as little leakage of water as possible?

• mostly clay

• mostly silt

• mostly sand

• equal amounts of clay, silt, and sand

Which of the following is not on of the elements that makes up over 88% of the Earth's crust

• Oxygen

• Silicon

• Aluminum

• Copper

The correct vertical donation of Earth above the core is

• asthenosphere-mantle-soil-lithosphere

• asthenosphere-lithosphere-mantle-soil

• mantle-asthenosphere-lithosphere-soil

• mantle-lithosphere-asthenosphere-soil

Which type of mining is usually most directly harmful to human health?

• mountaintop removal

• open-pit mining

• placer mining

• subsurface mining

Which contributes to the physical weathering of rocks?

• Acid rain

• Burial in sediment

• Volcanic activity

• Growth of plant roots