Natural Resources & Their Conservation Test

Question 1
1 / -0

Observe the following statements about the availability of water on the earth and identify the correct option regarding their accuracy.

I. Nearly 97% of the earth's surface is covered with water.
II. Almost 71% of the available water on earth is saline.
III. All living beings require water for their sustenance.
IV. All the terrestrial and many of the aquatic life forms cannot survive on water from the seas and oceans.

A
× - I, × - II, ✓ - III, ✓ - IV

B
✓ - I, × - II, × - III, ✓ - IV

C
× - I, ✓ - II, × - III, × - IV

D
✓ - I, × - II, ✓ - III, ✓ - IV

Question 2
1 / -0

Read the following passage and select the correct option to fill up the blank spaces.

The __(i)__ of water from surface of the earth to the __(ii)__ and then back to the earth is called the water cycle. As a result of the water cycle, water content of the __(ii)__ is maintained at a constant level. Water vapour is formed as a result of __(iii)__ from the oceans, lakes and seas, __(iv)__ from plants, respiration and combustion of fuels. The water vapour rises up in the atmosphere and comes in contact with cold air. On cooling, it __(v)__ to form tiny droplets of water, which together form clouds.

A
evaporation - (i), condenses - (ii), transpiration - (iii), evaporation - (iv), atmosphere - (v)

B
circulation - (i), atmosphere - (ii), evaporation - (iii), transpiration - (iv), condenses - (v)

C
transpiration - (i), atmosphere - (ii), circulation - (iii), evaporation - (iv), condenses - (v)

D
transpiration - (i), atmosphere - (ii), evaporation - (iii), circulation - (iv), condenses - (v)

Question 3
1 / -0

Analyse the two statements given below and select the correct option.

Statement I: It is easier to install a hand pump in the northern plains, but it takes a heavy drilling machine to install a tube well in the plateaus.
Statement II: Water table is usually higher in the plains but is very low in the plateaus.

A
Both statements I and II are correct and statement II is the correct reason for I.

B
Both statements I and II are correct, but statement II is not the correct reason for I.

C
Statement I is correct, but statement II is incorrect.

D
Both statements I and II are incorrect.

Question 4
1 / -0

Rainwater and the water from water bodies on Earth`s surface pass through the soil by the process of __X___, which then gets accumulated in the ____Y_____ deep under the ground.

Select the most suitable choices for X and Y.

A
X - infiltration, Y - aquifers

B
X - filtration, Y - wells

C
X - precipitation, Y - rivers

D
X - precipitation, Y - aquifers

Question 5
1 / -0

The roles of scrapers and skimmers in the sedimentation tank, respectively, are

A
to remove the grit and sand, and to remove the sludge

B
to remove the sludge, and to remove the floating waste

C
to remove the floating waste, and to remove the sludge

D
to remove the pathogens, and to remove the suspended impurities

Question 6
1 / -0

Activated sludge contains ____ water.

A
80%

B
60%

C
98%

D
67%

Submit Test

Natural Resourc...

Question 1

× - I, × - II, ✓ - III, ✓ - IV

✓ - I, × - II, × - III, ✓ - IV

× - I, ✓ - II, × - III, × - IV

✓ - I, × - II, ✓ - III, ✓ - IV

Question 2

evaporation - (i), condenses - (ii), transpiration - (iii), evaporation - (iv), atmosphere - (v)

circulation - (i), atmosphere - (ii), evaporation - (iii), transpiration - (iv), condenses - (v)

transpiration - (i), atmosphere - (ii), circulation - (iii), evaporation - (iv), condenses - (v)

transpiration - (i), atmosphere - (ii), evaporation - (iii), circulation - (iv), condenses - (v)

Question 3

Both statements I and II are correct and statement II is the correct reason for I.

Both statements I and II are correct, but statement II is not the correct reason for I.

Statement I is correct, but statement II is incorrect.

Both statements I and II are incorrect.

Question 4

X - infiltration, Y - aquifers

X - filtration, Y - wells

X - precipitation, Y - rivers

X - precipitation, Y - aquifers

Question 5

to remove the grit and sand, and to remove the sludge

to remove the sludge, and to remove the floating waste

to remove the floating waste, and to remove the sludge

to remove the pathogens, and to remove the suspended impurities

Question 6

80%

60%

98%

67%

User

Question Analysis

Natural Resourc...

Question 1

× - I, × - II, ✓ - III, ✓ - IV

✓ - I, × - II, × - III, ✓ - IV

× - I, ✓ - II, × - III, × - IV

✓ - I, × - II, ✓ - III, ✓ - IV

Question 2

evaporation - (i), condenses - (ii), transpiration - (iii), evaporation - (iv), atmosphere - (v)

circulation - (i), atmosphere - (ii), evaporation - (iii), transpiration - (iv), condenses - (v)

transpiration - (i), atmosphere - (ii), circulation - (iii), evaporation - (iv), condenses - (v)

transpiration - (i), atmosphere - (ii), evaporation - (iii), circulation - (iv), condenses - (v)

Question 3

Both statements I and II are correct and statement II is the correct reason for I.

Both statements I and II are correct, but statement II is not the correct reason for I.

Statement I is correct, but statement II is incorrect.

Both statements I and II are incorrect.

Question 4

X - infiltration, Y - aquifers

X - filtration, Y - wells

X - precipitation, Y - rivers

X - precipitation, Y - aquifers

Question 5

to remove the grit and sand, and to remove the sludge

to remove the sludge, and to remove the floating waste

to remove the floating waste, and to remove the sludge

to remove the pathogens, and to remove the suspended impurities

Question 6

80%

60%

98%

67%

User

Question Analysis

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