Which scenario is an example of a feedback effect??
a. ?An earthquake triggers a landslide.
b. ?A swarm of small earthquakes was observed before the eruption of Mt. St. Helens.
c. ?Melting arctic ice generates warm water which melts more ice.
d. ?A flood occurs in a populated area, causing more damage as a result.
e. ?A storm front creates hazards from lightning and tornadoes.
ANSWER: c
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A major oil spill in April 2010, caused damage to this body of water.
A) The Gulf of Mexico B) The Mississippi River C) Lake Superior D) Lake Michigan E) Lake Erie
The global human population
A) consumes fewer resources in a year than Earth can provide. B) has decreased its resource consumption in the last decade. C) would consume fewer total resources if everyone in the world consumed as many resources as the average American. D) needs 1.5 Earths to sustain its current rate of consumption.
Why is it difficult to estimate how long natural resources like copper, oil, and coal will last? What will be an ideal response?
What planet is an example that others planets besides Earth have a plethora of water?
A) Mars B) Jupiter C) Saturn D) Neptune