How are pristine conditions of the atmosphere determined?

A) Research conducted prior to the Industrial Revolution
B) Seawater samples from deep within polar ice packs
C) Sediment samples
D) All of these choices


B

Environmental & Atmospheric Sciences

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The pair of terms wave speed and wave frequency are

A. opposites. B. reciprocals. C. basically the same. D. fundamentally different from each other.

Environmental & Atmospheric Sciences

This pyramid shows the ratio of organisms, energy content, and biomass at different trophic levels. Suppose that a system has 5000 grasshoppers. How many hawks would be expected?

a. 5 b. 50 c. 500 d. 5000

Environmental & Atmospheric Sciences

This image shows the hypothetical planet in the investigation for the ocean interactions chapter. Which of the following places are the waters likely to be more saline than average?



A) In the subtropics of the Northern Hemisphere
B) In the subtropics of the Southern Hemisphere
C) Near the sea ice in the Southern Hemisphere
D) In all these places

Environmental & Atmospheric Sciences

The type of feature shown in this photograph is



A) fault scarp.
B) columnar joints.
C) shear zone.
D) folded metamorphic rocks.

Environmental & Atmospheric Sciences