Biology 473 Midterm 1 UPDATED ACTUAL
Exam Questions and CORRECT Answers
limnology - CORRECT ANSWER - oceanography of inland waters
renewal time - CORRECT ANSWER - how long it would take to refill an entire body of
water
renewal time of groundwater - CORRECT ANSWER - 300 years
renewal time of freshwater lakes - CORRECT ANSWER - 1-100 years
renewal time of saline lakes - CORRECT ANSWER - 10-1000 years
renewal time of soils - CORRECT ANSWER - 0.77 years
renewal time of rivers - CORRECT ANSWER - 0.033-0.055 years
glacial processes - CORRECT ANSWER - produce scour basins, moraine dams, ice block
or kettle lakes, made by ice sheets/glaciers retreating, large watershed, i.e. Great Lakes in
Michigan
paternoster lakes - CORRECT ANSWER - created by glacial processes, a string of
identical lakes regularly spaced from each other
tectonic processes - CORRECT ANSWER - produce single fault, multiple fault (graben),
and uplift lakes, older than glacial lakes and have more diverse species, smaller watershed area
and deep
, isostatic rebound - CORRECT ANSWER - ice sheet pressed down earth, earth rebounds
and changes shape of lake basin, lake level rises
volcanic processes - CORRECT ANSWER - produce caldera and diked lakes (i.e. Crater
Lake), small watershed with large surface area, no nutrients from watershed causes less
biological diversity and clear water
landslide processes - CORRECT ANSWER - blocks off valleys, allows lakes to form
fluvial (riverine) processes - CORRECT ANSWER - i.e. ox bow lakes, river leads to
groove in landscape that becomes stagnant, becomes a lake habitat rather than a river habitat,
barrier made of gravel floodplain
aeolian (wind) processes - CORRECT ANSWER - i.e. playa lakes, wind blowing creates
dunes, small lakes form in the basin of the dune
solution processes - CORRECT ANSWER - produce sink hole lakes and cenotes, water
from a river dissolves the rock (usually limestone) and creates a basin for a lake/pond
coastal processes - CORRECT ANSWER - wave action forms lakes
biotic processes - CORRECT ANSWER - i.e. beaver dams and human-made reservoirs,
behind these structures in streams/rivers, biggest source of current lake formation
extra-terrestrial imapct - CORRECT ANSWER - impact craters formed from meteors, etc.
become lakes
hypsographic curves - CORRECT ANSWER - depth vs area, depth vs volume, graphically
shows shape of lake basin
Exam Questions and CORRECT Answers
limnology - CORRECT ANSWER - oceanography of inland waters
renewal time - CORRECT ANSWER - how long it would take to refill an entire body of
water
renewal time of groundwater - CORRECT ANSWER - 300 years
renewal time of freshwater lakes - CORRECT ANSWER - 1-100 years
renewal time of saline lakes - CORRECT ANSWER - 10-1000 years
renewal time of soils - CORRECT ANSWER - 0.77 years
renewal time of rivers - CORRECT ANSWER - 0.033-0.055 years
glacial processes - CORRECT ANSWER - produce scour basins, moraine dams, ice block
or kettle lakes, made by ice sheets/glaciers retreating, large watershed, i.e. Great Lakes in
Michigan
paternoster lakes - CORRECT ANSWER - created by glacial processes, a string of
identical lakes regularly spaced from each other
tectonic processes - CORRECT ANSWER - produce single fault, multiple fault (graben),
and uplift lakes, older than glacial lakes and have more diverse species, smaller watershed area
and deep
, isostatic rebound - CORRECT ANSWER - ice sheet pressed down earth, earth rebounds
and changes shape of lake basin, lake level rises
volcanic processes - CORRECT ANSWER - produce caldera and diked lakes (i.e. Crater
Lake), small watershed with large surface area, no nutrients from watershed causes less
biological diversity and clear water
landslide processes - CORRECT ANSWER - blocks off valleys, allows lakes to form
fluvial (riverine) processes - CORRECT ANSWER - i.e. ox bow lakes, river leads to
groove in landscape that becomes stagnant, becomes a lake habitat rather than a river habitat,
barrier made of gravel floodplain
aeolian (wind) processes - CORRECT ANSWER - i.e. playa lakes, wind blowing creates
dunes, small lakes form in the basin of the dune
solution processes - CORRECT ANSWER - produce sink hole lakes and cenotes, water
from a river dissolves the rock (usually limestone) and creates a basin for a lake/pond
coastal processes - CORRECT ANSWER - wave action forms lakes
biotic processes - CORRECT ANSWER - i.e. beaver dams and human-made reservoirs,
behind these structures in streams/rivers, biggest source of current lake formation
extra-terrestrial imapct - CORRECT ANSWER - impact craters formed from meteors, etc.
become lakes
hypsographic curves - CORRECT ANSWER - depth vs area, depth vs volume, graphically
shows shape of lake basin
