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By Savita S. More

Maharashtra Board Class 4 EVS Storage of water

Last updated on June 26th, 2023 at 10:38 pm

Class 4 EVS Storage of water

 

Q: Why should we store water?

Storing water is important as it is a valuable natural resource needed for multiple activities. By storing water, we can ensure a backup supply during times of scarcity or emergencies.

 

Q: What were the traditional ways of storing water in the house?

Traditional ways of storing water in the house include using clay pots, copper pots, or earthenware pitchers, which keep the water cool and fresh for a longer time. Some people also store water in underground tanks or wells, which collect rainwater or groundwater.

 

Q: What is a dam built on?

A dam is built on a river or a stream to create an artificial reservoir or lake to store water. The dam is constructed by building a wall across the river, which causes the water to accumulate behind the wall and form a reservoir.

 

Q: What is water pollution

Water pollution is the contamination of water bodies by harmful substances such as chemicals, pesticides, and industrial waste, which can have severe consequences on aquatic life, human health, and the environment. Preventing water pollution requires sustainable practices, reducing waste, and treating sewage and industrial waste before discharging it into water bodies.

 

Q: What is Panpoi?

Panpoi is a practice of keeping big clay jars of drinking water in public places for the use of thirsty people, which is offered free of charge.

 

Q: Who sets up Panpois?

Panpois are set up by individuals or institutions.

 

Q: What are some traditional methods of water storage?

Some traditional methods of water storage include wells, tanks, and reservoirs.

 

Q: What are some modern methods of water storage?

Some modern methods of water storage include dams, artificial lakes, and underground water tanks.

 

Q: Why is economical use of water important?

Economical use of water is important because it ensures that water is used efficiently and not wasted, which is important for sustainable use of this natural resource.

 

Q: Why is water a natural resource?

Water is a natural resource because it is naturally occurring and found in lakes, rivers, oceans, and underground.

 

Q: Why is water important for all living things?

Water is important for all living things because it is necessary for various biological functions, such as hydration, regulation of body temperature, and transportation of nutrients and waste.

 

Q: What is the significance of dams in water storage?

Answer: Dams have played a significant role in water storage as they make it possible to store huge quantities of water, which has led to more land being brought under cultivation, cities growing, and factories being set up. Dams also generate electricity and help regulate water flow in rivers.

 

Q: What are borewells, and how are they used for water storage?

Answer: Borewells are very deep and narrow wells dug to reach the deep-seated ground water. They are typically used with the help of electric pumps, which make it possible to extract water from deep underground sources. Borewells are a popular method of water storage in areas where ground water is plentiful, but surface water sources are scarce.

 

Q: What are some ways to store water that were used in the past in your State?

Draw-wells and tanks were used to store water.

 

Q: Why is it important to save water?

It is important to save water because all living things use water all year round and if we don’t store water, we won’t have enough for our needs.

 

Q: What happens to the draw-wells when the tap-water system was introduced?

When the tap-water system was introduced, the draw-wells went out of use and many were sealed.

 

Q: What are some areas where reservoirs were built?

Reservoirs were built in areas of low rainfall or in areas without a major river.

 

Q: How were most of the reservoirs built?

Most of the reservoirs were built using stone and mortar.

 

Q: What are bunds and how were they used to store water?

Bunds were earthen or masonry structures built across rivers to store their water.

 

Q: Why is it important to save water?

We must save water because all living things need it and we need to ensure we have enough for our needs.

 

Q: What are some traditional methods of water storage?

Traditional methods of water storage include draw-wells, tanks, reservoirs, and bunds.

 

Q: What is a dam built on?

A dam is built on a river or stream to store water.

 

Q: What is water pollution?

Water pollution refers to the contamination of water by harmful substances that make it unsafe for humans and other living things to use.

 

Q: How can water be saved in places with water shortage?

Water can be saved in places with water shortage by adopting practices such as rainwater harvesting, using efficient irrigation methods, and fixing leaks in pipes and faucets.

 

Q: What good habits must we cultivate to use water economically?

We must cultivate habits such as turning off taps when not in use, using a bucket to wash cars instead of a hose, and taking shorter showers.

 

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