Photosynthesis and Cellular Respiration — Unit test Answers
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21
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When a volcano erupts, particles of rock and ash are released into the atmosphere. After this, water droplets form around the rock and ash particles and fall to Earth as rain. The rainwater helps plants grow.In this scenario, which spheres of Earth interact?
A
biosphere, cryosphere, hemisphereB
cryosphere, geosphere, biosphereC
geosphere, hydrosphere, biosphereD
hydrosphere, cryosphere, geosphere22
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Consider the diagram below, which represents components of the biosphere.What do the two arrows in the diagram most likely represent?
A
radiationB
photosynthesisC
cellular respirationD
energy transfers23
Which is the best definition of activation energy?
A
the energy required to end a chemical reactionB
the energy required to bind a substrate to an active siteC
the energy required to form or break the bonds of reactant moleculesD
the energy required to re-form bonds in product molecules24
Which part of Earth contains frozen water?
A
atmosphereB
biosphereC
cryosphereD
geosphereDid you find these answers helpful?
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