Q7 of 37 Page 115

What are the advantages of groundwater over water in rivers and ponds?

The various advantages of groundwater over water from rivers and ponds are as follows:


1. Ground water has lesser chances to get contaminated as it is covered whereas water in rivers is contaminated and there is risk of diseases also.


2Since ground water is covered and therefore, it doesn’t get evaporated whereas this is not so incase of water in rivers.


3Groundwater is suitable for drinking purposes whereas river water is not suitable as it is contaminated.


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Suggest a few measures for controlling carbon dioxide levels in the atmosphere.

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In the context of conservation of natural resources, explain the terms reduce, recycle and reuse. From among the materials that we use in daily life, identify two materials for each category.

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Prepare a list of five activities that you perform daily in which natural resources can be conserved or energy utilization can be minimized.