In the past 50 years, the global production and availability of grains has
A) been completely depleted in only 3 years.
B) been about the same on each of the major inhabited continents.
C) eliminated most of the need for the production of oilseeds.
D) remained at about 70 days, but importation is still required by most of the developing regions.
Question 2
The United States uses much more of some commodities than it produces. Therefore, the United States imports from other countries to meet its needs. However, much of this trade imbalance is offset by the exportation of large quantities of
A) automobiles.
B) grains.
C) palm oil, spices, and cocoa.
D) household goods (e.g., TVs, dishwashers, furnaces).
Primary production increases with an increase in total phosphorus concentration.
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Global climate change and CO2 concentration
World Crude Oil Production and Reserves (Billions of Barrels)
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