During the past half century, global food production has ________ world population growth
A) surpassed by several orders of magnitude
B) fallen to critical levels compared to
C) fallen behind
D) grown at a faster rate than
E) stayed about even with
Answer: D
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What is the main problem that has developed in the Ogallala aquifer?
A) It has become contaminated with radioactive waste from the Chernobyl accident. B) Precipitation is heavier to the east, causing tilting of the entire formation. C) Overpumping may cause the southern parts of the aquifer to go dry in the next 100 years. D) None of these are correct.
In this figure of Japan, the offshore trenches indicate
A) continental rifting.
B) a rift in a midocean ridge formed by seafloor spreading.
C) a rift in a midocean ridge formed by transform faulting.
D) subduction of oceanic crust.
The average American generates about ________ of municipal solid waste each year. (1 kg = 2.2 lbs.)
A) 350 kg B) 400 kg C) 725 kg D) 550 kg E) 625 kg
Along with the Sahara, which of the following is the world's major location of ergs?
A) The North American deserts B) The Arabian desert C) The European desert D) The South American desert E) The Antarctic desert