Hydrogen Cycle

Question 1

Hydrologic cycle

Answer 1

powered by the sun, movement of water in its various solid, liquid & gaseous phases between sources & sinks

Question 2

Primary reservoir of water

Answer 2

Oceans, ice caps & groundwater acting as much smaller reservoirs.

Question 3

Main reservoirs of freshwater

Answer 3

snow & ice, groundwater, lakes, soil, atmosphere & rivers

Question 4

Transpiration

Answer 4

Release of water from leaves (plant surface) during photosynthesis

Question 5

Evaporation

Answer 5

liquid water to water vapor

Question 6

Evapotranspiration

Answer 6

sum of water evaporation & transpiration from a surface area to atmosphere

Question 7

Condensation

Answer 7

gaseous water vapor to liquid

Question 8

Precipitation

Answer 8

water released from clouds

Question 9

Percolation

Answer 9

downward flow of water

Question 10

Infiltration

Answer 10

movement of water into soil

Question 11

Groundwater recharge & flow

Answer 11

returns water from land to oceans

Question 12

Runoffs

Answer 12

Water moves across land surface & into streams & rivers eventually reaching oceans

Question 13

Human Effects - Trees

Answer 13

Harvesting trees from forest can reduce evapotranspiration by reducing plant biomass
As evapotranspiration decreases, then runoff or percolation will increase

Question 14

Human Effects - Mountain Slope

Answer 14

Clear cutting a mountain slope can lead to erosion & flooding

Question 15

Human Effects - Paving Over

Answer 15

Paving over land to provide services (building roads, businesses & homes) reduces amount of percolation that can take place in given area
increases in runoff & evaporation will occur

Question 16

Human Effects - Diverting Water

Answer 16

Diverting water from one area to another to provide water for drinking, irrigation and/or industrial uses (Ex. Las Vegas)