A data record that substitutes for direct instrumental measurements is called a

A) variation.
B) paleoclimate.
C) correlation.
D) proxy.


Answer: D

Environmental & Atmospheric Sciences

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A) Cfa B) Cfb C) Csa D) Csb

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Rain which falls from a cloud, but evaporates before reaching the ground is called virga. Indicate whether the statement is true or false

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Describe the differences in environment between Oceania's low and high islands.

What will be an ideal response?

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The polar vortex

A) brings warm air poleward. B) is located in the lower troposphere. C) is caused by a temperature gradient. D) consists of strong easterly winds. E) all of the above

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