Tag: water resources and conservation

Questions Related to water resources and conservation

Ahars, Kattas, Bhundhis and Khadins are the modes of

social science water a precious resource water harvesting water resources and conservation water management

  1. afforestation

  2. deforestation

  3. soil conservation

  4. water harvesting

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Correct Option: D
Explanation:

The people of rural India use different methods to collect water. Water-harvesting techniques used depend on the location where it is to be used.

Which sector is the single-largest consumer of fresh water in India?

social science water a precious resource water harvesting water resources and conservation water management

  1. Agriculture

  2. Industry

  3. Domestic

  4. Power

Show answer
Correct Option: A
Explanation:

Agriculture is the largest user of fresh water resources, consuming 70% followed by industry (20 %) and municipalities account for remaining 10%.

Khadins, Ahars and Kattas are ancient structures that are example of water harvesting.

social science water a precious resource water harvesting water resources and conservation water management

  1. True

  2. False

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Correct Option: A
Explanation:

Water harvesting is an age-old concept in India. Khadins, tanks and nadis in Rajasthan; bandharas and tals in Maharashtra; bundhis in Madhya Pradesh and Uttar Pradesh; ahars and pynes in Bihar; kulhs in Himachal Pradesh; pond in the Kandi belt of Jammu region and eris (tanks) in Tamil Nadu; surangams in Kerala; and kattas in Karnataka are some of the ancient water harvesting, including water conveyance structures.

So, the correct answer is 'True'.

The modern method of rainwater harvesting is

social science water a precious resource water harvesting water resources and conservation water management

  1. Rooftop

  2. Runoff

  3. Bandharas

  4. Both A and B

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Correct Option: D

Seeping of rainwater through the soil helps to maintain

social science water a precious resource water harvesting water resources and conservation water management

  1. Water table

  2. Watercycle

  3. Nitrogen

  4. None of the above

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Correct Option: A

Which of the following is the component of rooftop rainwater harvesting system?

social science water a precious resource water harvesting water resources and conservation water management

  1. Catchment

  2. First flush

  3. Filter

  4. All of the above

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Correct Option: D

Why do we celebrate water day every year?

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  1. We celebrate water day every year to attract the attention of everybody towards the importance of conserving water.

  2. It is a tradition.

  3. It is for commercial purposes.

  4. None of the above

Show answer
Correct Option: A
Explanation:
World water day is celebrated every year on 22nd March. Water is essential for life on earth. The water available for consumption on earth is limited. Only 3% of the water on earth is freshwater. All lakes, rivers and swamps combined include a very small part that is 0.3% of the earth's total freshwater reserves. Hence water should be used judiciously. So water day is celebrated every year to attract the attention of everybody towards the importance of conserving water.
Thus, the correct answer is option A.

Almost all the water on the earth is contained in the ____________.

commercial applications receding water table water and ocean conservation water resources and conservation water conservation and irrigation

  1. seas and oceans

  2. rivers, lakes

  3. ice caps

  4. All of the above

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Correct Option: D
Explanation:

Almost all the water on the earth is contained in the seas and oceans, rivers, lakes, ice caps, as groundwater and in the atmosphere.

Why earth appears blue from the space?

commercial applications receding water table water and ocean conservation water resources and conservation water conservation and irrigation

  1. About 71% of the earths surface is covered with water which gives blue colour to earth.

  2. Earth is covered with blue air.

  3. Earth is covered with blue coloured mountains and rocks.

  4. All of the above.

Show answer
Correct Option: A
Explanation:
  • The earth is predominantly (71 % of the earth's surface) covered with water. Water absorbs the white light in the radiation (sunlight). The sunlight through appears white it is actually a combination of lights of several different colors (Violet, indigo, blue, green, yellow, orange and red). 
  • When sunlight reaches the water; the water absorbs, lights of all colors in the white light and reflects only blue light. Thus, the earth from space appears blue. If the water absorbs all colors and reflects only yellow, then it would appear yellow.

Forest control drought through

evs - i receding water table water and ocean conservation water resources and conservation water conservation and irrigation

  1. Lot of water plants

  2. Increasing rainfall

  3. Retention of water and prevention of erosion

  4. Functioning as water shed

Show answer
Correct Option: C
Explanation:

Forests helps in producing rainfall. More are the trees, the more water gets absorbed into clouds and the more it helps in rain falls. The roots of a tree make gaps in the soil so that when it rains the water can sink in before being absorbed by the soil. These spaces also allow air and water to reach the roots of the plants.  If the forests disappear, there will be less rain resulting in dryer conditions, that eventually lead to drought. Once this happens, the damage is extensive making it difficult to plant more trees or plants later because the soil is so hard and dry. When trees removed using heavy machinery, the soil is pushed down and the gaps fill in. Because all plants and trees need that water and air to reach roots, the conditions become unfriendly for new growth.