What is the leading source of renewable energy worldwide?

A. hydropower
B. geothermal energy
C. solar-cells
D. biomass
E. biodiesel


Answer: A

Environmental & Atmospheric Sciences

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The primary causes of acid deposition are ________

A) soil dust and sand B) sulfur dioxide and nitrogen oxides C) tropospheric ozone D) radon gas and fuelwood smoke E) carbon monoxide and formaldehyde

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The geothermal gradient is, on the average, about

A. 1°C/km B. 50°C/km C. 30°C/km D. 10°C/km

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Using regional examples, explain how orographic precipitation and rain shadows are related

What will be an ideal response?

Environmental & Atmospheric Sciences

Worldwide per capita use of water has

A. increased substantially. B. remained remarkably constant over the centuries. C. increased slightly. D. actually dropped because of technological advances.

Environmental & Atmospheric Sciences