Tag: environmental science

Questions Related to environmental science

Watershed _____ emphasises scientific soil and water conservation and tends to increase the biomass production.

basics of management of water environmental science conservation of resources food production: soil and water management biology

  1. Management

  2. Restoring

  3. Conservation

  4. Distribution

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Correct Option: A
Explanation:

Watershed management emphasizes scientific soil and water conservation and tends to increase the biomass production.

Watershed: An area or ridge of land that separates water flowing to different rivers, basins or seas is called as watershed.

The aim of the watershed management is to develop primary resources of land and water to produce secondary resources of plants and animals for use in a manner which will not cause ecological imbalance.
The process of creating and implementing plans, programs and projects to sustain and enhance watershed functions that affect the plant, animal and human communities within a watershed boundary.

Inadequate drainage in a soil will lead to

basics of management of water environmental science conservation of resources food production: soil and water management biology

  1. Salination

  2. Floods

  3. Soil erosion

  4. Aridity

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Correct Option: A

The Naga hills from the watershed between India and

basics of management of water environmental science conservation of resources food production: soil and water management biology

  1. China

  2. Myanmar

  3. Bhutan

  4. Bangladesh

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Correct Option: B

Identify the correct statements:
A. Water shed management helps in scientific soil and water conservation.
B. Water harvesting techniques are locally specific and locally benefited.
C. Check dams are practised for the conservation pf seasonally flooded gullies.
D. Groundwater storage techniques are more effective than open-air storage of water.

basics of management of water environmental science conservation of resources food production: soil and water management biology

  1. A, B, C and D

  2. A, C and D

  3. B, C and D

  4. A, B and D

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Correct Option: A
Explanation:

Water-shed management is the system in which soil and water are conserved by scientific means. Water harvesting techniques help people obtain optimum amounts of water. Check Dams help in collecting water at specific regions and prevent floods. Storage of water below the soil level helps in conservation of water in a better manner. 

So, all the given statements are true. The correct option is "A". 

It is necessary to conserve wetland because

basics of management of water environmental science conservation of resources food production: soil and water management biology

  1. It purify surface water

  2. It recharge ground water

  3. It holds back water

  4. Both A and B

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Correct Option: D
Explanation:

The wetlands are responsible for the trapping of the chemicals and harmful wastes. This results in protection of the aquatic systems. This also helps to purify the water since the sediments and the waste is trapped in these regions. This protects the groundwater. The activity of the organisms in these regions allows recharging the surface and groundwater. 

Thus, the correct answer is option D. 

Watershed is

basics of management of water environmental science conservation of resources food production: soil and water management biology

  1. An area that contains streams and rivers that drain into the single large water body.

  2. An area that preserves natural water to recharge zones.

  3. An area that catches rain water.

  4. Both A and C

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Correct Option: D
Explanation:

An area or ridge of land that separates water flowing to different rivers, basins or seas is called as watershed. Much of the water comes from rainfall and storm water runoff. Watersheds are usually separated from other watersheds by naturally elevated areas.

Thus, the correct answer is option D.

To protect an area where water is at the surface of earth is the aim of

basics of management of water environmental science conservation of resources food production: soil and water management biology

  1. Watershed conservation

  2. Wetland conservation

  3. Domestic conservation

  4. Industrial conservation

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Correct Option: B

Wetland covers at least .......... of the earth.

basics of management of water environmental science conservation of resources food production: soil and water management biology

  1. 20%

  2. 10%

  3. 15%

  4. 6%

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Correct Option: D

Seeding clouds was started in

basics of management of water environmental science conservation of resources food production: soil and water management biology

  1. 1950

  2. 1946

  3. 2000

  4. 1814

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Correct Option: B
Explanation:
Cloud seeding is a type of weather modification. This method was started in 1946. This is done in order to increase the amount of rain in a particular region. This method focusses on to change the amount of precipitation that falls from clouds. The method uses dispersing of certain substances into the air that will serve as cloud condensation or ice nuclei. These materials can alter the processes within the cloud. 
Thus, the correct answer is option B. 

Identify the water management system.

basics of management of water environmental science conservation of resources food production: soil and water management biology

  1. PMC

  2. CCT

  3. Oxygenation

  4. None of the above

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Correct Option: B