The epicenter of an earthquake is on the surface of the Earth directly above the focus.

a. true
b. false

Ans: a. true

Environmental & Atmospheric Sciences

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One of the environmental problems with gold mining is the leach ponds that contain ____________________

Fill in the blanks with correct word

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Which hazard is considered a biological hazard?

A. disease-carrying pathogens B. smoking cigarettes C. drinking too much alcohol D. natural flooding E. unsafe working conditions

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Critical Thinking According to the accompanying diagram, what total percentage of U.S. commercial energy is wasted?

What will be an ideal response?

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________ are a major carbon sink.

A. Rivers B. Oceans C. Ponds D. Lakes

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Environmental & Atmospheric Sciences