To help understand and visualize the extent and intensity of the human impact on the earth, some scientists use the concept of the human (or ecological)
A) analysis.
B) convergence.
C) footprint.
D) region.
E) settlement.
Answer: C
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Detritivores eat
A) almost solely plants. B) decaying plants and/or animals in the soil. C) almost solely animals. D) animals and plants in the sea only.
Which of the following is true of evapotranspiration in North America?
A) The lowest amounts occur in the Southwest and southern Texas. B) The lowest amounts occur in northern Canada. C) The highest amounts are received in the Mid west. D) The highest amounts are received in the U.S. Pacific Northwest.
When viewing the planets, Mars appears to move backwards, or retrograde, because ________
A) it is rotating around the sun slower than the earth's rotation B) it is rotating at approximately the same speed but its orbit is more elliptical than the earth's rotation C) it is rotating at approximately the same speed but its orbit is more circular than earth's orbit D) it is rotating around the sun faster than the earth's rotation
Hurricane centers are colder than their surroundings.
Answer the following statement true (T) or false (F)