Mountain chains, such as the Himalayas, are direct result of two plates subsiding.

a. true
b. false


b. false

Environmental & Atmospheric Sciences

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Forced vibration produces resonance when

A. frequencies refract. B. frequencies match. C. waves reflect in unison. D. speeds match.

Environmental & Atmospheric Sciences

The process by which individuals and groups try to influence the decisions and policies of governments is

a. economics b. resource management c. politics d. ethics e. all of these answers

Environmental & Atmospheric Sciences

What evidence led scientists to believe that waves travel at a greater velocity inside Earth?

A) Studies of earthquake signals via sensors located deep inside drill holes prove it. B) Refraction of energy waves is most efficient at shallower depths. C) Refraction of energy waves is most efficient along short paths. D) Average velocity is faster when the seismograph is farther from the focus of the earthquake.

Environmental & Atmospheric Sciences

Photochemical ________ is (are) the result of gases reacting to ultraviolet solar energy in strong sunlight, and forming secondary pollutants

A) aerosols B) smog C) precipitation D) wind E) erosion

Environmental & Atmospheric Sciences