What happens when there is a sharp rise in the extinction rate that greatly exceeds the background rate?
What will be an ideal response?
Mass extinction occurs.
Environmental & Atmospheric Sciences
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A sack of potatoes weighing 200 N falls from an airplane. As the velocity of fall increases, air resistance also increases. When air resistance equals 200 N, the sack's acceleration in meters per second squared is
A) 0. B) 5. C) 10. D) infinite. E) none of the above
Environmental & Atmospheric Sciences
________ pollutants are emitted directly into the air
Fill in the blank(s) with correct word
Environmental & Atmospheric Sciences
Who made the following statement: “In wildness is the preservation of the world”?
a. Rachel Carson b. Lao Tzu c. Aristotle d. Henry David Thoreau
Environmental & Atmospheric Sciences
The A horizon of a soil consists of ____
a. bedrock b. unchanged parent material c. the partly decomposed organic debris d. the topsoil
Environmental & Atmospheric Sciences