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What is the impact of water pollution on groundwater in the water cycle?

Answer and explanation

Correct answer: Polluted water seeps down and contaminates groundwater too

Correct answer: B. Groundwater is formed when some rainwater and surface water move downward through pores and cracks in soil and rocks. If this water contains pesticides, excess fertilisers, sewage, or industrial chemicals, some pollutants can travel with it. The soil may filter certain particles, but it cannot safely remove every dissolved chemical or microorganism. Therefore, polluted water may contaminate an underground aquifer, making wells unsafe for drinking and harming underground ecosystems. A is wrong because pollutants are not always confined to the surface. C is wrong because natural filtration is limited and does not guarantee purification. D is wrong because seepage provides a pathway to groundwater. Memory cue: surface pollution can move downward—“what soaks in may reach the aquifer.”

Related tags

Water PollutionGroundwaterHydrological CycleThe Living WorldBiologyClass 11 Mcq

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