Which of these belongs in the family of electromagnetic waves?

A. Light.
B. X-rays.
C. Radio waves.
D. all of the above


Answer: D

Environmental & Atmospheric Sciences

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Base level of a stream is a balance of

A) stream power and sediment load. B) velocity and discharge. C) precipitation and infiltration. D) runoff and evaporation.

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Using the blanks provided, match the correct labels to the parts of the interior of the Earth

A) Mantle B) Inner Core C) Crust D) Outer Core 1) A 2) B 3) C 4) D

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Poisonous volcanic gasses can contaminate drinking water

a. True b. False

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The oldest rocks in the column of limestone shown in the diagram are

A. at the bottom. B. in the middle. C. at the top.

Environmental & Atmospheric Sciences