This figure helps to explain that for the last half century most increase in food production has come from
A) expanding agricultural land.
B) expanding exports.
C) discovering new foods.
D) increasing agricultural productivity.
E) increasing fish harvests.
Answer: D
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Which of the following is an example of a small circle?
A) Prime Meridian B) Tropic of Cancer C) Equator D) International Date Line
Which of the following is not true about motor vehicles in the United States?
A) There are more motor vehicles than licensed drivers. B) More than 95% of U.S. households have a motor vehicle. C) An average city allocates about 10% of its land to roads and parking lots. D) The U.S. government pays for the vast majority of limited-access, high-speed interstate highways. E) The U.S. has policies to keep the price of gasoline below the level found in Europe.
Which of the following statements most accurately describes temperature and density patterns in Earth's oceans?
A) Density generally increases and temperature generally decreases with depth. B) Density and temperature generally increase with depth. C) Warm tropical waters are denser than waters at high latitudes. D) The densest and warmest waters are found in the tropics.
Which of the following is a characteristic of intensive agriculture?
A) Most work is done by hand. B) Plots of land are very small. C) Physiological density is high. D) It is practiced mostly in river valleys and irrigated fields in the middle latitudes. E) All of the above