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Q. |
Which of the following weeds has been found useful to check water pollution caused by industrial effluents? |
A. | Partheniurn |
B. | Elephant grass |
C. | Water hyacinth |
D. | Both (1) and (2) |
Answer» D. Both (1) and (2) | |
Explanation: Parthenium and Elephant grass are useful to check water pollution caused by industrial effluents. |
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