Physics · Capillarity
Why do farmers plough their fields after rainfall to preserve soil moisture?
- 1To increase the capillary action in the top soil
- 2To break the capillaries formed in the soil, preventing evaporation✓
- 3To allow the soil to absorb atmospheric nitrogen directly
- 4To compress the soil particles tighter together
Correct answer
To break the capillaries formed in the soil, preventing evaporation
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