All of the following are the advantages of wind barrier such as row of trees along the edge of field EXCEPT:
A. conserve moisture
B. trap the blowing wind
C protect crops from the effects of wind
D. increase the effects of wind erosion.

The wind barrier such as a row of trees along the edge of the field does not increase the effects of wind erosion.

Explanation:

Wind barriers are barriers that are set with the purpose to reduce the effects of the winds on the soil and crops. The most commonly used method is to plant rows of trees that are set on the way of the winds, and they are set on the edges of the fields. This is a very simple, cheap, and hgihly effective method.

The positive effects of the wind barriers of such type are that they reduce significantly the speed of the winds, thus the crops don't get bent over. Also, with the slower wind, the soil retains moisture for longer periods. The erosion rates too are much smaller, which is of great benefit for agriculture as the fertile topsoil is not carried away.