A recent viral video entitled "How Wolves Change Rivers" argues that the reintroduction of wolves to Yellowstone after a 70 year absence led to multiple changes in the biodiversity and ecology of the park. This is an example of a(n)
A) pioneer community.
B) autotroph.
C) primary succession
D) trophic cascade
E) eutrophication
D
Environmental & Atmospheric Sciences
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Wolves were reintroduced to the Yellowstone ecosystem in ____.
A. 1620 B. the 1920s C. 1954 D. 1995 E. 2003
Environmental & Atmospheric Sciences
Increased foliage cover in parts of Australia has been attributed to which of the following climate change related phenomena?
A) Cloud albedo forcing B) Sea level rise C) Cloud greenhouse forcing D) CO2 fertilization effect
Environmental & Atmospheric Sciences
Which agent of erosion is responsible for the erosional pattern circled in this image?
A) Melting B) Running water C) Wind D) Ice
Environmental & Atmospheric Sciences
A(n) ________ is the sharp peak that remains after cirques have cut back into a mountain on several sides.
A. arête B. horn C. inselberg D. tarn E. cirque
Environmental & Atmospheric Sciences