Tag: evs - i

Questions Related to evs - i

Water cycle leads to change in

evs - i sources of water the lithosphere and the hydrosphere first aid safety and first aid

  1. Pressure

  2. Humidity

  3. Temperature

  4. Both B and C

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Correct Option: D
Explanation:

During evaporation, water takes up energy from its surroundings and cools the environment. It releases energy when it condenses and warms the environment. This causes a change in the temperature as well as the humidity of the surrounding. Thus the correct answer is option D.

Which phase of water cycle gives us fresh water?

evs - i sources of water the lithosphere and the hydrosphere first aid safety and first aid

  1. Condensation

  2. Evaporation

  3. Precipitation

  4. Runoff

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Correct Option: C
Explanation:

The hydrological cycle is a prominent method to rejuvenate the fresh water resources. It involves the evaporation of water into water vapor by the heat of the sun which further condenses into tiny water droplets which fall on the earth as rain. The process of condensation that forms rain is also known as precipitation.

So, the correct answer is option C.

During water cycle, the water undergoes .......... phase.

evs - i sources of water the lithosphere and the hydrosphere first aid safety and first aid

  1. Ice

  2. Liquid

  3. Gas

  4. All of the above

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Correct Option: D
Explanation:

  • The hydrological cycle is a prominent method to rejuvenate freshwater resources.
  • It involves the evaporation of water into water vapor by the heat of the sun which further condenses into tiny water droplets that fall on the earth as rain. This continuous recycling of water leads to the recharging of water resources.
  • It includes the interconversion of different states of water. The ice present in the glaciers melts due to the overheating of the earth and enters the hydrological cycle.

So, the correct answer is option D.

................... is one of the ways by which water moves on the Earth.

evs - i sources of water the lithosphere and the hydrosphere first aid safety and first aid

  1. Condensation

  2. Precipitation

  3. Runoff

  4. None of the above

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Correct Option: C
Explanation:

Runoff is one of the ways by which water moves across earth's surface, it can be both surface runoff and channel runoff. As it flows, the water may seep into the ground, evaporate into the air, stored in lakes or reservoirs, which are then to be extracted for agricultural or other human uses. 

Which of the following are essential for the maintenance of balance in the ecosystem?

evs - i sources of water the lithosphere and the hydrosphere first aid safety and first aid

  1. Water cycle

  2. Carbon cycle

  3. Nitrogen cycle

  4. All of these

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Correct Option: D
Explanation:

Water cycle, carbon cycle and nitrogen cycle are essential to maintaining balance in an ecosystem. Water evaporates due to heating and gets converted into water vapour. The vapours cool down and return back to earth as rain.

Carbon cycle maintains equilibrium between oxygen and carbon dioxide concentration in the atmosphere. Photosynthesis utilises the carbon dioxide and releases oxygen while the respiration utilises oxygen and give back carbon dioxide.
The nitrogen cycle is the process by which atmospheric nitrogen is fixed by the plants in form of nitrates and nitrites which are further released back to the atmosphere by the process of nitrification.
So, the correct answer is option D

Water vapour in the clouds undergoes ............ and comes down as rain.

evs - i sources of water the lithosphere and the hydrosphere first aid safety and first aid

  1. Evaporation

  2. Condensation

  3. Precipitation

  4. Percolation

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Correct Option: B

The groups of small rivers form bigger river is called as

evs - i sources of water the lithosphere and the hydrosphere first aid safety and first aid

  1. Iceberg

  2. Lagoon

  3. Estuaries

  4. Tributaries

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Correct Option: D

Lakes get water from 

evs - i sources of water the lithosphere and the hydrosphere first aid safety and first aid

  1. Ocean

  2. River

  3. Underground spring

  4. Icebergs

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Correct Option: C

Which of the following forms river?

evs - i sources of water the lithosphere and the hydrosphere first aid safety and first aid

  1. Rill

  2. Brooks

  3. Streams

  4. All of the above

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Correct Option: D

What is an aquifer?

evs - i sources of water the lithosphere and the hydrosphere first aid safety and first aid

  1. Underground lake

  2. Underground river

  3. Where water goes into ground

  4. None of the above

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Correct Option: C