Which of the following pr°Cesses make a layer of air more unstable?

A. warming the upper part of the layer
B. cooling the upper part of the layer
C. preventing mixing of the air in the layer
D. sinking the entire air layer


Answer: B

Environmental & Atmospheric Sciences

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Much of Earth's water supply likely originated from

A) gases expelled from the Sun; i.e., solar wind. B) respiration of early organisms. C) asteroids. D) photosynthesis. E) transpiration

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Panthalassa was a global ocean surrounding Pangaea

a. True b. False

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Indicate whether the statement is true or false

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