Lakes: Question Preview (ID: 503)

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What formed the Great Lakes?
a) construction workers
b) uplift
c) glaciers
d) volcanoes

How can the movement of Earth's crust form a lake?
a) It could dissolve a lake bed
b) It could form a depression that fills with water.
c) It could uplift the rock.
d) It could split open.

An example of point source pollution is __________.
a) automobile fluids washing off the roads and into a stream
b) fertilizer runoff from farms
c) landfills seeping into groundwater
d) dumping used motor oil into a stream

What organisms live in all parts of a lake?
a) frogs
b) single-celled organisms
c) birds
d) fish

A lake has filled up and become dry land. What caused this?
a) the Sun
b) Eutrophication
c) sediment from runoff
d) rainwater

When water in a lake mixes due to changing seasons, this is called __________.
a) convection
b) seasonal mixing
c) turnover
d) blending

What is a requirement for an area to be a wetland?
a) It must be covered with water throughout the year.
b) It must contain lakes.
c) It must keep water stored underground.
d) It must be covered in water sometime during the year.

What type of pollution is easiest to stop?
a) point source
b) nonpoint source
c) runoff
d) industrial waste

A wetland has few trees and shrubs. This is a __________.
a) swamp
b) marsh
c) bog
d) pond

What is an animal that lives in wetlands?
a) eagle
b) iguana
c) beaver
d) wolf

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