Some 3/4 of the total soil loss from erosion in the United States is carried away by water. ...

Some 3/4 of the total soil loss from erosion in the United States is carried away by water.
 
  Indicate whether the statement is true or false

Question 2

The T values are the maximum losses of soil by erosion that can be tolerated without a reduction in the soil's long term productivity.
 
  Indicate whether the statement is true or false

Question 3

About what percentage of the total non-federal government owned rural lands is considered suitable for cultivation according to USDA land use capability classes (if appropriate management practices are employed)?
 
  A) 2 B) 35 C) 75 D) 55 E) 20

Question 4

On which of the land use capability classes is suggested use restricted to non-production purposes, only wildlife and recreational purposes being appropriate?
 
  A) IV B) I C) II D) VI E) VIII

Question 5

The presence of neutral salts in salt-affected soils helps keep the pH from rising above 8.5.
 
  Indicate whether the statement is true or false

Question 6

Living terraces involving rows of deep rooted grasses planted on the contour would be considered as contributing to which factor in the Universal soil-loss equation?
 
  A) R B) P C) K D) L E) S

Question 7

Irrigation of a saline-sodic soil with water very low in salts could lead to the formation of a sodic soil.
 
  Indicate whether the statement is true or false