What is the basic concept of sustainable agriculture?
What will be an ideal response?
Sustainable agriculture is agriculture that does not deplete soils faster than they form and does not destroy the biodiversity of the area. Sustainable farming and ranching do not reduce the amount of healthy soil, clean water, genetic diversity of crop plants and animals, such that agriculture can be practiced in the same way in the same place far into the future. Maintaining as much ecological biodiversity as possible in the agro-ecosystem is essential to long-term crop and livestock production. After all, our concept of sustainability is based on the functioning of intact ecosystems, and agro-ecosystems are modified ecosystems which are governed by the same rules of stability and interdependence as their natural counterparts.
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What is biodiversity and why is it used to measure the health of a natural environment?
What will be an ideal response?
Why is the extraction of wind so effective over or near the ocean?
a. There are large gusts of wind. b. The wind tends to be steady in these areas. c. Windmills can be easily constructed on platforms. d. There is more stress on the gears to generate more energy.
In predicting the onset of an El Nino, supercomputers would use all of the following EXCEPT changes in
A. sea surface temperature. B. precipitation totals. C. wind speed. D. atmospheric pressure.
Because water heats and cools more slowly than land, the lag in daily temperature over water is usually much ____________________ than that experienced over land
Fill in the blank with correct word.