Justify the following statement -
a) Cooking oil and fats should not be poured in the drains.
b) drip irrigation and sprinkler system are boon for areas receiving low rainfall.
Class 8 - Bridge course
NCERT
Science
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Ans1- because they can block the drainage pipes.
Ans2- Drip irrigation and sprinkler systems provide efficient irrigation with low levels of water. This is indeed a boon for dry areas. Drip Irrigation: Pipes are fitted to reach the roots of the crops. The water is supplied in the form of drops so that loss of water is minimised.
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