water reservoirs are built in which water body
Answers
Answer:
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Explanation:
A (water) reservoir is an artificial water body created usually in a river valley by means of water-retaining constructions for accumulation and storage of water to be used in the national economy. Reservoirs are divided into two types: lake- and river-type ones.
Water is one of the most important resources gifted to us after air. It forms the basis of life for every living organism on earth. Life without water is unimaginable and impossible. This is the sole reason why finding traces or signs of water is an important criterion of planetary exploration. Life on earth probably would not have even begun if not for water.
Interesting Facts About Water:
World water day is celebrated on 22nd March every year
Earth consists of 78% water, rest constitutes for land
60% of your body is made up of water on an average, Jellyfish has over 95%
97% of water on earth is salt water
0.01% of the water available is fresh water(drinkable/potable)
More than 69% of freshwater is trapped in glaciers
Why Is Water Important?
Scientists theorize that life originated from water, hence nearly all organisms need water to exist and survive. Water also forms the base for all living organisms. As much water is lost from our body, the same or more needs to be replenished.
Water is used in everyday life, for drinking, farming, construction, agriculture, industries, hospitals, water cycle to name a few
Water boosts metabolism, helps in blood circulation
Helps create saliva and provides oxygen to cells of the body
It houses different aquatic creatures
Used as a means for transportation
After understanding how important water is and how there is a scarcity of freshwater in the world, let us look at some of the ways in which we can sensibly use water and conserve it as much as possible.
Water conservation
Water can be conserved and used for various purposes. Dams and water harvesting help towards fulfilling this criterion.
Dams
How are lakes and reservoirs created? How is electricity generated?
Dams are the answers to these questions. Dams are huge barriers created along water bodies to restrict and confine the flow of water. This confinement helps generate electricity because the water is stored at a height creating potential energy, the water confined is also used for irrigation and agricultural purposes etc.
Significance of Dams
One of the first and foremost uses of dams has to be the generation of hydroelectric power which produces electricity.
Helps in controlling a flood, as the rate at which water flows can be caught and controlled.
Dams store water to be used by farmers for irrigation purposes.
Serves the purpose of drinking to nearby people as water stored is fresh water and not salt water.
Water stored while building a dam is called a reservoir. This water can be used for various water-related activities
Stored water helps people commute across banks.
While they come with a lot of benefits, dams negatively affect social, economic and environmental factors. For instance:
Dams can displace local tribes without providing necessary compensation and shelter
Dams can be a financial drain on the public
Results in loss of biological diversity and deforestation
Water Harvesting
Another method of conserving water is through water harvesting. Water harvesting is a practice of collecting rainwater or runoff/excess water for various household purposes. Care is taken to make sure that the water is pollutant free at any given time; pollutants could be from the air, water, soil etc. Water for this can be obtained from various resources such as excess water from rooftops, seasonal flood streams, watershed management etc.
Uses of Harvesting Water
Water generally in these methods are not held up in the surface but beneath the ground.
Water can be purified and used for drinking purposes
Used for daily household chores
Water stored is also supplied to large scale industries
Serves as a secondary resource of water for animals and plants
Helps increase biomass production
Mitigates droughts and floods
Increases the life of downstream reservoirs and dams
Recharges wells, provides moisture to the ground hence vegetation
Water does not dry up/Evaporate
Since water is not stored on earth, there is no chance of mosquitoes and other species breeding as seen in cases of stagnant water
Chances of water being contaminated by animals and humans are nullified.
Answer:
River
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