Q20. Which of the following statement is true? *
(a) On earth, the percentage of water that is fresh & readily available for use is 3%.
(b) A large amount of water is lost through drip irrigation technique.
(c) Throwing chemicals in drains, hardens & blocks the pipe of sewerage system.
(d) The upper layer of ground water is called water table.
Answers
Answered by
0
Answer:
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Answered by
2
Answer:
A is the correct option
Explanation:
because if we round off the percentage of fresh water then it becomes 3%
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