The establishment of perennial energy crops has demonstrated a positive effect on the health of ...

The establishment of perennial energy crops has demonstrated a positive effect on the health of soil. Why?

a. The soil is shaded and thus cooler.
b. The roots prevent soil erosion.
c. The perennial crops make the soil more acidic.
d. The soil gets more sun.

Question 2

Studies show that acreage planted in perennial, short-rotation plants for biomass have ____ using the same acreage to grow food.

a. a similar environmental impact as
b. less of an environmental impact than
c. a greater environmental impact than
d. exactly the same environmental impact as

Question 3

Low levels of dissolved oxygen in water is a condition known as hypoxia.

Indicate whether the statement is true or false.

Question 4

Particulate matter is almost eliminated when biomass is burned instead of coal.

Indicate whether the statement is true or false.

Question 5

Because the combustion of biomass in power plants leads to significant reductions of nitrogen oxides and sulfur oxides when compared to the combustion of bituminous coal, there is a significant reduction in acid precipitation.

Indicate whether the statement is true or false.

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The establishment of perennial energy crops has demonstrated a positive effect on the health of ...

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