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Aquatic Environments Exam 1
Exam 1
16
Environmental Studies
Undergraduate 3
02/24/2015

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Cards

Term
Limnology
Definition
the study of freshwater (lakes, ponds, rivers, streams, etc.)
Term
lotic
Definition
flowing water
Term
lentic
Definition
standing water
Term
how long would it take superior to refill if emptied?
Definition
200 years
Term
how much water do humans need per day
Definition

2L

but most comes from food

Term
current human population
Definition
7.3 billion people
Term
what causes flooding of the red river?
Definition
- it flows north (the south melts faster)
- conversion of wetlands to agriculture = loss of "sponge land"
Term
who is Forel?
Definition
father of limnology - introduced the term limnology in 1890's
Term
who is Forbes?
Definition
lake as a microcosm, lakes as an ecosystem 1887
Term
how are lakes formed?
Definition
glaciers, tectonic, volcanic, earthquakes, organisms (beavers/humans), wind, landslide, meteor processes
scouring, blocking from sediment build up
Term
how many lakes on earth?
Definition

304 million

but 28 million are in smallest category

Term
are salt lakes usually open or closed basins?
Definition
closed basins
Term
why are lakes shrinking?
Definition

upstream water use for agriculture, drinking, etc.

Aral Sea

Lake Urmia

Term
the deepest lakes are formed by which process?
Definition

tectonic processes

ex: Lake Tanganyika, Africa

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