Question

Which of the following aspects of agricultural cultivation increases the risk of erosion? A. replacing natural vegetation with cultivated crops B. utilizing no-till planting methods C. plowing in curved, rather than straight, lines D. leaving plants in the ground during the winter

Answer 1

The correct answer is - A. replacing natural vegetation with cultivated crops.

The natural vegetation is perfectly adapted to a certain environment, and it is also able to keep the soil tight with its roots, so the erosion is minimal.

When the natural vegetation is replaced by cultivated crops, than a problem occurs in the erosion of the soil. That is because the cultivated crops, in general, do not have root systems that are as strong and widespread as the natural vegetation, thus the soil becomes loosened up, so it is much easier to be eroded.

Answer 2

The answer is A. replacing natural vegitation with cultivated crops! Just took the test!