Multiple choice

_______ of land surface is used for agriculture and grazing by the world's 6 billion people.

  1. A quarter

  2. One eighth

  3. Three quarters

  4. One third
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

One third of land surface is used for agriculture and grazing by the world's 6 billion people. This method of raising livestock is known as intensive rotational grazing or management-intensive grazing. It may be a very non-productive method but it reduces pollution, improves water quality and reduces erosion. 

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