Which technology provides the cheapest source of electricity generation?

A) biomass
B) geothermal power
C) solar energy
D) wind power
E) all of the above are incredibly expensive, and not valid alternatives to fossil fuels


A

Environmental & Atmospheric Sciences

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As Suzy's velocity increases when she skydives, her acceleration

A. remains unchanged. B. decreases. C. cannot be estimated. D. also increases.

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Using the rank-size rule, a country's fourth largest city is expected to be about ________ of the size of the largest city

A) one-half B) two-thirds C) one-third D) one quarter E) one-sixteenth

Environmental & Atmospheric Sciences

The eventual result of ________ is to reduce almost all stream-carried debris to very small silt particles

A) splash erosion B) rill erosion C) abrasion D) sheet erosion E) precipitation

Environmental & Atmospheric Sciences

Which of the following is NOT one of the four most populous countries in the Latin American region?

a. Brazil b. Mexico c. Peru d. Argentina e. Columbia

Environmental & Atmospheric Sciences