All AP Environmental Science Resources
Example Questions
Example Question #4 : Biochemical Cycles
The hydrolytic cycle is driven by which of the following?
Rain
Oceans
Solar energy
Atmosphere
Rivers
Solar energy
The water cycle remains in the form of water throughout the cycle. The major reservoir of water is the ocean. The water cycle is driven by solar energy which evaporates water, and by gravity, which draws water back to Earth in the form of precipitation from water vapor in the atmosphere.
Example Question #1 : Water Cycle
Which answer choice a pair of terms that are the most similar in reference to the water cycle?
Condensation and percolation
Precipitation and percolation
Transpiration and evaporation
Precipitation and runoff
Transpiration and evaporation
Transpiration is the evaporation of water from plants. Both terms can be defined as the conversion of liquid water on Earth into atmospheric water vapor. Condensation is the formation of clouds from water vapor. Precipitation is the release of water from clouds down towards the earth in the form of rain, hail, sleet or snow. Percolation is the seeping of water through the ground into groundwater sources like aquifers. Runoff is excess water on the superficial soil layers that cannot percolate into the ground.
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