Unit 2: Hydrologic Cycle Flashcards
How do humans impact the water cycle?
One way is by paving things and causing more runoff.
What is the role of the sun in the water cycle?
It causes evaporation and provides energy for photosynthesis.
What is the primary reservoir of water on earth’s surface?
Oceans, holding 94.5% of all water.
What are smaller reservoirs of water?
Lakes, glaciers, organisms.
What happens during transpiration?
Plants release water from their leaves.
What happens during percolation?
Water moves through soil.
What happens during evaporation?
Heated water turns into water vapor.
What happens during precipitation?
Water falls from the sky in some form.
What happens during infiltration?
Water on the surface goes into the ground.
What happens during runoff?
Water moves across the surface into bodies of water.
What happens during uptake?
Water is taken in by organisms.
What is evapotranspiration?
The combined amount of evaporation and transpiration.
What kind of cycle is the water cycle?
Biogeochemical cycle.
Water makes up how much of most mammal’s body weight?
50%
What does water do?
Allows molecules in cells to move, gets nutrients into plants, gets rid of toxic materials, and many other things organisms need to survive.
