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74. How can you improve the drinking water in polluted area?
A. Fertilize the ground with calcium so it seeps through and purifies the groundwater
B. Plant trees with deep roots
C. Once the groundwater is polluted, it is too late to do anything
D. People need to share limited amount of groundwater​


Sagot :

Answer:

A. Fertilize the ground with calcium so it seeps through and purifies the groundwater

Explanation: