Crater Lake in Oregon is an example of a lake depression caused by
a. displacement of the Earth's crust
b. glaciation
c. intentional digging by man to create a reservoir
d. volcanic activity
e. a meteor strike millions of years ago
D
Environmental & Atmospheric Sciences
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The primary limitation of solar energy is the lack of money needed to fund such projects.
Answer the following statement true (T) or false (F)
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The half-life of carbon 14 is _________ years
a. 5,730 d. 48.8 billion b. 40,000 e. 704 million c. 4.5 billion
Environmental & Atmospheric Sciences
The Human Development Index includes measures of vulnerability to
A. malnutrition B. pornography on TV C. sexual harassment D. snowstorms
Environmental & Atmospheric Sciences
Bottom-up control of primary productivity refers to control by all of the following except ________.
A. salinity B. grazing C. nutrients D. light E. temperature
Environmental & Atmospheric Sciences