Unit 5 review

Multiple Choice

Which of the following correctly describes a mid-ocean ridge?

• Volcanic activity cannot occur at a mid-ocean ridge.​

• The oldest crust forms at a mid-ocean ridge

• The thinnest oceanic lithosphere forms at a mid-ocean ridge

• New continental lithosphere forms at a mid-ocean ridge.

Multiple Choice

What kind of rock makes up most of the oceanic lithosphere?

• Sandstone​

• Granite​

• Basalt

• Quartzite

Multiple Select

Where water meets land what two spheres are interacting?

• Lithosphere

• Biosphere

• Atmosphere

• Hydrosphere

Multiple Choice

Which of the following best explains why plants cannot absorb nitrogen gas?

• Nitrogen gas cannot bond with other elements

• Nitrogen gas always bonds with carbon

• Nitrogen gas makes up a small fraction of the atmosphere

• Nitrogen gas does not occur naturally

Multiple Choice

Which of the following cannot be used by plants?

• Ammonia

• Nitrogen molecules

• Nitrogen Dioxide

Multiple Select

Which of the following are forms of abiotic nitrogen fixation? (Select all that apply)

• Volcanic Eruptions

• Blue green algae

• Lightning

• Bacteria in plant roots

Multiple Choice

Which of the following is an example of a consumer?

• Sun

• Earthworm

• tree

• sheep

Multiple Choice

Does the energy in a pyramid increase or decrease as it nears the top?

• stays the same

• increases

• decreases