Natural Resources Test

Result

Natural Resources Test - 21

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Weekly Quiz Competition

Question 1
1 / -0

Why do scientists think that human-induced global warming will be more harmful to plants and animals than natural climate fluctuations?

A
Because temperature will rise faster

B
Because climate can be controlled

C
Because species now are less adaptable

D
Because ecosystems are more complicated

Solution

Global warming is the increase in the temperature of Earth due to the increased concentration of greenhouse gases in the atmosphere. Temperature change due to global warming is faster than the temperature change due to natural climate fluctuations. This has resulted in melting of ice glaciers which will lead to rising in sea level and also the amount of freshwater will decline. Abnormal increase in temperature due to global warming has resulted in the extinction of many plant and animal species because of habitat loss and extreme climatic conditions.
So, the correct answer is option A.
Question 2
1 / -0

The outermost layer of earth is called as

A
Mantle

B
Outer core

C
Crust

D
Inner core

Solution

The outermost chemical layer is the crust. Thus Option A is correct.
Question 3
1 / -0

Which one of the following is not a reason for shortage of usable water?

A
Over exploitation

B
Climate change

C
Deforestation

D
Decrease in sea level

Solution

Water shortage is the water scarcity that may be caused by altered weather patterns including droughts or floods, increased pollution, and increased human demand and overuse of freshwater. Sea water cannot be used for daily activities because of the salt content. Thus, the correct answer is option D.
Question 4
1 / -0

The absorption of $$UV$$ radiation by $$O_3$$:

A
protects the inhabitants of our planet from injurious radiation

B
maintains an equilibrium between the concentrations of $$O_2$$ and $$O_3$$

C
makes both the function A and B above effective

D
makes no function effective

Solution

We know that UV-B radiation is very harmful.

The UV light will also destroy ozone and break ozone back down into atomic oxygen (O) and diatomic oxygen ($$O_2$$) Therefore, the ozone layer does a great job filtering UV radiation and this process protects the inhabitants of our planet from injuries radiation and adsorption of UV radiation has maintained the equilibrium between the of oxygen and ozone in the atmosphere.

So, A and B are both effective.

C is the correct answer.
Question 5
1 / -0

Maximum green house gas released by which of the following country?

A
India

B
France

C
China

D
Britain

Solution

Greenhouse gasses generally trap the radiations of the earth which leads to an increase in the temperature of the earth and global warming. The greenhouse gases include water vapor, carbon dioxide, methane, nitrous oxide, and ozone. According to the latest data, the top emitters by 'Netherlands Environmental Assessment Agency' are China - 28.6%, USA - 16%, India - 5.8%, Russia - 5.4% and Japan - 3.7%.
Thus, the correct answer is option C.
Question 6
1 / -0

In water receiving regions, what does forest regulate?

A
Hydrological cycle

B
Carbon cycle

C
Nitrogen cycle

D
Calcium cycle

Solution

In water receiving regions, forest plays a great role in managing water cycle. Forest helps in preventing soil erosion too. More vegetation results in more rainfall and thus more water is added to the water table. Rainforests help to make water cycle. The role of rain forests in the water cycle is to add water to the atmosphere through the process of transpiration. This moisture contributes to the formation of rain clouds, which release the water back onto the rainforest. Moisture generated by the rainforests travels around the world.
Question 7
1 / -0

Which of the following leads to the formation of compost?

A
Decomposer

B
Synthesizer

C
Consumer

D
Primary Producer

Solution

Decomposers are the microorganism that acts on the dead and decaying matter present in the soil and converts it to compost which increases the fertility of the soil. The process of formation of compost by earthworm is known as vermicomposting.
So, the correct answer is option A.
Question 8
1 / -0

Water cycle comprises of two overlapping cycles:

A
Surface waters and atmospheric cycles

B
Oceanic and fresh water cycles

C
Ground water and atmospheric cycles

D
Global and smaller cycles
Solution
- The water cycle involves the continuous movement of water on, above and below the surface of the Earth.
- The surface water evaporates by the process of evaporation which condenses into tiny droplets that fall on the earth as rain as a source of the atmospheric cycle.
- Surface waters and atmospheric cycles thus overlap in hydrological cycles.
  Thus, the correct answer is option A.
Question 9
1 / -0

Air pollution is caused because of the high proportion of undesirable gases such as ________:

A
Methane

B
Carbon dioxide

C
Sulphur dioxide

D
All of the above

Solution

Air pollution is mainly caused by harmful gases like sulfur dioxide, nitrogen, methane, carbon dioxide. These gases mix with the fresh air from the factory discharge and smoke emitted from vehicles. They disturb the constituents of the air. Air pollution leads to respiratory disease in human beings, reducing plant growth, etc.
Question 10
1 / -0

The major source of water to the soil is ______.

A
Ground water

B
Capillary water

C
Precipitation

D
Both A and B
Solution
- Precipitation is any liquid or frozen water that forms in the atmosphere and falls back to the Earth.
- It comes in many forms, like rain, sleet, and snow.
- This water seeps into the soil and thus is its major source.
So, the correct option is C, i.e., Precipitation.

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Natural Resources Test - 21

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Natural Resources Test - 21

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SHARING IS CARING

Question 1

Because temperature will rise faster

Because climate can be controlled

Because species now are less adaptable

Because ecosystems are more complicated

Solution

Question 2

Mantle

Outer core

Crust

Inner core

Solution

Question 3

Over exploitation

Climate change

Deforestation

Decrease in sea level

Solution

Question 4

protects the inhabitants of our planet from injurious radiation

maintains an equilibrium between the concentrations of $$O_2$$ and $$O_3$$

makes both the function A and B above effective

makes no function effective

Solution

Question 5

India

France

China

Britain

Solution

Question 6

Hydrological cycle

Carbon cycle

Nitrogen cycle

Calcium cycle

Solution

Question 7

Decomposer

Synthesizer

Consumer

Primary Producer

Solution

Question 8

Surface waters and atmospheric cycles

Oceanic and fresh water cycles

Ground water and atmospheric cycles

Global and smaller cycles

Solution

Question 9

Methane

Carbon dioxide

Sulphur dioxide

All of the above

Solution

Question 10

Ground water

Capillary water

Precipitation

Both A and B

Solution

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