________ is the buildup of salts in soils as a result of improper irrigation
A) Erosion B) Desertification C) Leachate D) Salinization
D
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In the year 2006, the U.S. consumed approximately one billion tons of coal. Each ton of coal produces 20 GJ (gigajoules of energy). How much energy was actually put to work?
A. 16% B. 59% C. 84% D. 29%
Determine where the phrase belongs and select that letter. Which letter best matches the phrase 4-6 km/s in crust
Determine where the phrase belongs and select that letter. Which letter best matches the phrase 4-6 km/s in crust.
For a given theoretical country, assume the productivity in metric tons per hectare remains stable, and the weighting factor remains the same, but the metric tons of fish harvested per year is reduced by 50%
How will this affect the fishprint for this country? What will be an ideal response
In the real world, population explosion is usually followed by
A. A continuation of high population levels indefinitely B. A population crash C. A tremendous increase in genetic diversity D. A gradual increase in population due to the availability of mates E. A gradual decrease in population as food supplies dwindle