Tag: natural resources - air, water and land

Questions Related to natural resources - air, water and land

 Which of the following is not a source of potable water?

evs every drop counts natural cycles and resources water sources around us natural resources - air, water and land

  1. Well

  2. River

  3. Lake

  4. Sea

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Correct Option: D
Explanation:

Potable water means drinking water. Well, river and lake contain drinking water as these all contain either rainwater and groundwater which is suitable for drinking. The sea which contains salty water that is not suitable for drinking is not a source of potable water.

The water cycle is driven by the:

evs every drop counts natural cycles and resources water sources around us natural resources - air, water and land

  1. moon

  2. sun

  3. oceans

  4. clouds

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Correct Option: B
Explanation:

The water cycle is driven by the sun.

As the water cycle is driven by the energy provided by the sun.
As evaporation is caused by the sunlight which is a major process of water cycle.
So water cycle is majorly driven by the sun.

The water in the oceans and seas has many ______ dissolved in its.

evs every drop counts natural cycles and resources water sources around us natural resources - air, water and land

  1. bases

  2. iron

  3. acids

  4. salts

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Correct Option: D
Explanation:

The water in the oceans and seas has many salts dissolved in it. The most abundant ions in sea water are $Cl^-, Na^+. SO _4^{2-}, Mg^{2+}, K^+$.

Well water is an example of surface water.

evs every drop counts natural cycles and resources water sources around us natural resources - air, water and land

  1. True

  2. False

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Correct Option: A
Explanation:

True. Well water is an example of surface water because it appears on the surface and it is not ground water.

Which of the following is correct?

evs every drop counts natural cycles and resources water sources around us natural resources - air, water and land

  1. Ocean water is fit for agricultural and industrial needs

  2. Oceans play an important role in supplying the water that we use

  3. Ocean water is not saline

  4. None of the above

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Correct Option: B
Explanation:

Option B is correct.

Oceans play an important role in supplying the water that we use.

Development of soil from rocky matter is

soil as a natural resource natural resources - air, water and land land physical resources biology

  1. Pedogenesis

  2. Pedology

  3. Edaphic factors

  4. Edaphic climax

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Correct Option: A

Out of the total cost of various ecosystem services, the soil formation accounts for about:-

soil as a natural resource natural resources - air, water and land land physical resources biology

  1. $50\%$

  2. $10\%$

  3. $6\%$

  4. $71\%$

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Correct Option: A
Explanation:

Out of the aggregate expense of different ecosystem services, the dirt arrangement represents around 50 percent and commitments of different administrations like the diversion.

So, the correct option is '50%'.

Acid dissolved nutrients and valuable minerals from

soil as a natural resource natural resources - air, water and land land physical resources biology

  1. Water

  2. Soil

  3. Mountains

  4. Air

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Correct Option: B

Soil is formed by the _____.

soil as a natural resource natural resources - air, water and land land physical resources biology

  1. Formation of rocks

  2. Arrangement of layers of sand

  3. Breaking down of rocks

  4. Arrangement of rocks

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Correct Option: C
Explanation:

Soil is formed by the breaking down of rocks by the action of wind, water and Climate. This process is called weathering.

So, the correct answer is 'breaking down of rocks'

Which of the following factors does not lead to soil formation in nature?

soil as a natural resource natural resources - air, water and land land physical resources biology

  1. The sun

  2. Water

  3. Wind

  4. Polythene bags

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Correct Option: D
Explanation:
Weathering is the name given to the process by which rocks are broken down to form soils. There are three main types of weathering, physical, chemical and biological. Polythene bags does not lead to soil formation in nature.
When they are thrown on land it makes soil less fertile. They slowly release toxic chemicals that certain animals use as a resource. These are a non-biodegradable waste. So, the correct answer is option D.