contestada

The picture shows an example of contour plowing. How does this method help farmers? A. It reduces soil erosion. B. It reduces landslides. C. It reduces flooding. D. It increases crop yield. E. It reduces pollution.

Respuesta :

Dejanras

Answer is: A. It reduces soil erosion.

Contour plowing or contour farming is the plowing and planting across a slope following its elevation contour lines.

This lines create a water break which reduces the formation of rills during rains, because lines let more time for the water to settle (stay) into the soil.

Contour plowing is effective on slopes with between 2% and 10% gradient.

wiseowl2018

Answer:

The correct answer is option A which is It reduces soil erosion.

Explanation:

  • In general plowing rusts made by plow are parallel to the slope. But in contour plowing rusts are perpendicular to plow
  • Which prevents the tillage erosion which is the movement and erosion of soil.
  • But in contour plowing, perpendicular rusts allow more water to absorb than making its way in rust taking soil with it.