The first comprehensive theory of continental drift was proposed by ________ in the early twentieth century
A) Darwin
B) Köppen
C) Wegener
D) Wallace
E) Saganss
Answer: C
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Bird populations have been shown to be sensitive indicators of climate change because they are ________
A) small B) long-lived C) obvious in the environment due to being beautiful D) highly mobile E) susceptible to flying into buildings
Which of the following is a consequence of acid deposition?
A) It results in offshore eutrophication, damaging coral reefs. B) It leaches important minerals from soils. C) It increases the likelihood of low-lying ground fogs. D) It creates rainwater that can damage skin cells or cause cancers. E) It is increasing the rate of global warming.
What mineral is shown in this photograph? 
A. calcite B. quartz C. magnetite D. feldspar E. hematite
The shoreline represents:
a. the general region of interaction between land and the ocean or lake. b. the average position of the water line. c. sea level. d. the average position of high tide. e. the exact, constantly changing contact between dry land and the standing water body.