Question

1. The method of supply of drinking water to Indian

households has changed over the past 50 years. Draw a

flow chart to depict the same.

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Answer 1

Answer:

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Explanation:

The water supply and sanitation in India has increased greatly from 1980 to present. Still, many people lack access to clean water, toilets, and sewage infrastructure. Various government programs at national, state, and community level have brought rapid improvements in sanitation and the drinking water supply. These various programs are ongoing.

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Answer 2

Earlier the purification of drinking water was done by the process of adding certain chemicals.

Explanation:

• Nowadays there are multiple steps for purification of drinking water. Firstly the physical step where they are made to exposed to high temperature. In addition to this the add certain alarm to water resulting in decrease of the upward movement of water.
• Finally chemicals and biological processes are done to purify water. This is done for the last thirty years after purification tank and biological purification method has been introduced

To know more

why do people need protected drinking water scheme - Brainly.in

https://brainly.in/question/2007291