ASU Bio 130 Exam #1 Questions & Answers

ASU Bio 130 Exam #1 Questions & Answers
The Water Cycle - CORRECT ANSWER-

How much of earth's water is freshwater? - CORRECT ANSWER-less than 3%

How much of earth's water is salty, or ocean water? - CORRECT
ANSWER-about 97%

How is freshwater divided up between common "reservoirs" (atmosphere, soil
and aquifers, plants and animals, glaciers and icecaps, surface water - lakes,
rivers and streams)? - CORRECT ANSWER-30.1% is groundwater
68.7% is glaciers and ice caps
3% is in the atmosphere
3.8% is soil moisture
.26% is in living things
Surface water is 1.2%

How LONG is a water molecule in these different Earth reservoirs (know 2
longest and shortest times) - CORRECT ANSWER-It depends on permeability:
sometimes it can move several meters in a day, in others it can take a century to
move a centimeter

Precipitation - CORRECT ANSWER-Condensed water falling as rain, snow, or
ice

Condensation - CORRECT ANSWER-Water vapor becomes liquid water as air
cools

Evaporation - CORRECT ANSWER-The process of turning from liquid to vapor

Transpiration - CORRECT ANSWER-Release of water vapor from plants

Evapotranspiration - CORRECT ANSWER-Evaporation of water from plants and
soil