Tag: evs

Questions Related to evs

Percentage of fresh water in hydrosphere is

evs water in our life where do we get water from? why conserve water uses of water

  1. Less than 10%

  2. Less than 25%

  3. Less than 3%

  4. Less than 17%

Show answer
Correct Option: C
Explanation:

Hydrosphere includes all water on the earth's surface, such as lakes, rivers, seas, oceans etc. The biggest reservoir of fresh water in hydrosphere are glaciers and polar ice that contain just over 2% of the available water and is fresh water. Thus the correct answer is option C.

Percentage of total water found as fresh water is 

evs water in our life where do we get water from? why conserve water uses of water

  1. 46%

  2. 32%

  3. 16%

  4. 2.5%

Show answer
Correct Option: D
Explanation:

Only 2.5% of total water present on the surface of the earth is present as freshwater which can be used for drinking and is potable. Rest of it is present in the form of seawater which is not salt-free and cannot be used for drinking. So, freshwater should be used very judiciously and used for drinking.

So, option D is the correct answer.

Out of the total percentage, of water present as ground water is

evs water in our life where do we get water from? why conserve water uses of water

  1. 0.1%

  2. 0.3%

  3. 0.5%

  4. 0.75%

Show answer
Correct Option: C
Explanation:

Ground water can be defined as the water found beneath the surface of earth due to seepage of water from rain and other water bodies

So, the correct answer is '0.5%'

Estuaries are considered as nutrient trap due to the mixing of

evs water in our life where do we get water from? why conserve water uses of water

  1. River and sea water

  2. Pond and lake

  3. Lake and river

  4. Ocean and pond

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Correct Option: A

'Lean meat' is considered to be of high quality because it has __________________.

evs animals- nature's gift animal and habitat wonderful world of bholu food material and source

  1. Lesser but easily digestible protein

  2. Lesser lipid content

  3. More fat that makes the meat softer

  4. Longer table life due to lesser chances of infection

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Correct Option: A

Which one of the followings is obtained from animals?

evs animals- nature's gift animal and habitat wonderful world of bholu food material and source

  1. Wool

  2. Cotton

  3. Jute

  4. Nylon

Show answer
Correct Option: A
Explanation:
Wool is obtained from the animal sheep. It is fur of the animal sheep which is scraped out through a series of process and finally collected in the form of  yarns. Cotton and Jute are obtained from plants whereas, nylon is a synthetic material produced by combination of chemicals.
So, the correct answer is 'Wool'.

The animals like sheep and camel is used for __________.

evs animals- nature's gift animal and habitat wonderful world of bholu food material and source

  1. Milk

  2. Carriage

  3. Medicines

  4. Both A and B

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Correct Option: D

Which of the following practices are involved in the animal husbandry?

evs animals- nature's gift animal and habitat wonderful world of bholu food material and source

  1. Rearing of animals

  2. Breeding of animals

  3. Caring for animals

  4. All of the above

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Correct Option: D

Camel is a ship of the desert. It is also reared for wool.

evs animals- nature's gift animal and habitat wonderful world of bholu food material and source

  1. True

  2. False

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Correct Option: A

The science of breeding and caring of animal is known as___________.

evs animals- nature's gift animal and habitat wonderful world of bholu food material and source

  1. Irrigation

  2. Sericulture

  3. Apiculture

  4. Animal husbandry

Show answer
Correct Option: D
Explanation:
The science of breeding and caring of animals is known as Animal husbandry. It is a branch of agriculture.