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knipp - ch. bay #7
misc. ch. bay information - #7
15
Environmental Studies
7th Grade
10/03/2012

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Cards

Term
a line that connects points of equal elevation (height)
Definition
contour line
Term
T/F - contour lines far apart on a map mean a steep slope
Definition
false
Term
a place where fresh and salt water mix
Definition
estuary
Term
where most of the world's freshwater is found.
Definition
ice caps in Greenland and Antarctica
Term
Is more freshwater found underground or in lakes, streams and rivers?
Definition
underground
Term
a rapid increase in algae population
Definition
algal bloom
Term
two elements that make up most nutrients
Definition
nitrogen (N) & phosphorus (P)
Term
chemical used to kill bacteria in watar
Definition
chlorine
Term
each stop on the food chain
Definition
trophic level
Term
group that eat producers
Definition
consumers
Term
group that break down dead organisms
Definition
decomposers (i.e. - bacteria)
Term
a fish that is a filter feeder and food source for rockfish and bluefish
Definition
menhaden
Term
a pesticide used to kill mosquitoes
Definition
DDT
Term
reason DDT was banned
Definition
caused osprey and eagle eggs to become brittle therefore breaking easily
Term
name two filter feeders in the Bay.
Definition
oysters, mussels, clams, menhaden
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