water and soil resources Flashcards
movement of water
around Earth’s surface
and its subsystems.
Hydrologic cycle
are the
places where water
resides for varying
amount of time
Reservoirs
are the processes that allow water to move between each reservoirs and subsystems
Pathways
is the evaporation of water from the leaves and stems of plants, which contributes about 10% of the water vapor in the atmosphere
transpiration
average length of
time spent by water molecule in a
reservoir.
residence time
is the saltiness of saltwater
salinity
a permanent body of ice (largely of
recrystallized snow)
glaciers
is a mass of glacial land ice
extending more than 50,000 km2
(covering
most of Greenland and Antarctica
Ice sheets
A soil, rock, or sediment that
is frozen for more than two
consecutive years.
permafrost
moving body surface water that flows downslope toward sea level because of gravity.
stream
stream has clearly-defined passageway
channels
is a stream with a considerable volume and a well-defined channel.
River
large inland bodies of fresh or saline
water
lakes
are small and shallow lakes
Ponds
are barriers constructed along
streams to contain the flow of water
Dams