Multiple choice

Salination in soil is caused due to _________.

  1. increased use of pesticides

  2. over utilization of soil resources

  3. overgrazing by animals

  4. over irrigation by canals and wells

  5. none of the above

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Owing to over irrigation and capillary action,  the soil is becoming alkaline and about 50% of land is affected by this area.