Natural Resources Test 1

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Natural Resources Test 1

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Question 1
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The given picture shows that air_____.

A
Has mass

B
Occupies space

C
Contains dust

D
Gives shape to things

Solution

In the morning, if we examine the beam of light entering our room, we will notice tiny particles floating in air. These are dust particles. Hence, it shows that air contains dust particles.
Question 2
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Select the correct option regarding natural resources.

A
They can never be exhausted.

B
They are obtained from soil only.

C
Non-mineral resources include air and water.

D
Some of the natural resources are harmful to us.

Solution

Useful products that are obtained from nature are called natural resources. Resources we get from soil are mineral resources e.g., gold, coal while those we get from other than soil are non-mineral resources e.g., air and water.
Question 3
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Three glasses P, Q and R having equal Amount of water were taken at room temperature and equal amount of salt was added to each one of them. After that, P was cooled, Q was heated and R was left undisturbed. Water in which glass will now taste most salty?

A
P

B
Q

C
R

D
All will taste the same

Solution

Since water in glass ‘Q’ is heated, therefore, water in glass 'Q' will taste more salty as the solubility increases on heating.
Question 4
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In ______, we leave a mixture in a jar undisturbed for some time so that impurities get settled at the bottom and then slowly pour clear water into another jar.

A
Filtration

B
Evaporation

C
Decantation

D
Condensation

Solution

Decantation is the process of separation of liquid from solid and other immiscible (non-mixing) liquids, by removing the liquid layer at the top from the layer of solid or liquid below.
Question 5
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Soil is formed from rocks by the process of ____ that occurs due to effects of ____, ____, etc.

Select the option that will correctly complete the given sentence.

A
Erosion, temperature, wind

B
Erosion, microorganisms, water

C
Weathering, erosion, pollution

D
Weathering, water, wind

Solution

Formation of soil is a slow and gradual process. Soil is formed by the breaking down of rocks by the action of wind, water, temperature and microorganisms. This is called weathering.
Question 6
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____ in soil is the fertile component.

A
Gravel

B
Humus

C
Moisture

D
Air

Solution

Humus is the dark coloured component of soil that is rich in organic matter. It makes soil fertile.
Question 7
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Which of these natural resources is a source of lumber used for building a house?

A
Ores

B
Coal

C
Lumber

D
Grasses

Solution

Lumber or timber is the wood used in construction work. Trees are the source of wood.
Question 8
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Refer to the given figure. The rock X can be _____.

A
Granite

B
Pumice

C
Marble

D
Shale

Solution

Pumice is a porous, light yet hard igneous rock. It is so light that it can float on water.
Question 9
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Nidhi pushed the plunger of syringe completely and dipped its needle in water.

Then she slowly pulled the plunger while its needle was still immersed in water. Select the correct option regarding this.

A
Water will move in the syringe when she pushed the plunger down due to air pressure.

B
When she pushed the plunger down all the air moved out creating an empty space in syringe.

C
Air outside the syringe exerted pressure on water causing it to move in when the plunger is pulled up.

D
Both (b) and (c)

Solution

When plunger is pushed down, the air inside the syringe is pushed out, creating an empty space. When the plunger is pulled up the water rushes up to take the empty space due to the air pressure acting on it outside the syringe.
Question 10
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Which of the following statements is incorrect?

A
Precious metals like gold and platinum are used for making jewellery.

B
Dentists use powdered pumice for polishing our teeth.

C
Black gold is another name of granite.

D
Shale is used to make tiles and bricks.

Solution

Black gold is another name of oil or petroleum. It is black when it comes out of ground and is worth a great deal of money.

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Re-Attempt Weekly Quiz Competition

Natural Resources Test 1

Result

Natural Resources Test 1

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SHARING IS CARING

Question 1

Has mass

Occupies space

Contains dust

Gives shape to things

Solution

Question 2

They can never be exhausted.

They are obtained from soil only.

Non-mineral resources include air and water.

Some of the natural resources are harmful to us.

Solution

Question 3

P

Q

R

All will taste the same

Solution

Question 4

Filtration

Evaporation

Decantation

Condensation

Solution

Question 5

Erosion, temperature, wind

Erosion, microorganisms, water

Weathering, erosion, pollution

Weathering, water, wind

Solution

Question 6

Gravel

Humus

Moisture

Air

Solution

Question 7

Ores

Coal

Lumber

Grasses

Solution

Question 8

Granite

Pumice

Marble

Shale

Solution

Question 9

Water will move in the syringe when she pushed the plunger down due to air pressure.

When she pushed the plunger down all the air moved out creating an empty space in syringe.

Air outside the syringe exerted pressure on water causing it to move in when the plunger is pulled up.

Both (b) and (c)

Solution

Question 10

Precious metals like gold and platinum are used for making jewellery.

Dentists use powdered pumice for polishing our teeth.

Black gold is another name of granite.

Shale is used to make tiles and bricks.

Solution

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