The entire fleet of buses in Delhi was converted to CNG from diesel. In reference to this, which one of the following statements is false?

1. It cannot be adulterated like diesel.
2. CNG burns more efficiently than diesel.
3. The same diesel engine is used in CNG buses making the cost of conversion low.
4. It is cheaper than diesel.



 

Subtopic:  Air Pollution |
 71%
From NCERT
NEET - 2022
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Given below are two statements:

Statement I: In a scrubber the exhaust from the thermal plant is passed through the electric wires to charge the dust particles.
Statement II: Particulate matter (PM 2.5) cannot be removed by scrubber but can be removed by an electrostatic precipitator.

In the light of the above statements, choose the most appropriate answer from the options given below:
1. Statement I is incorrect but Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is correct but Statement II is incorrect.
Subtopic:  Air Pollution |
From NCERT
NEET - 2022
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High dose of UV-B causes inflammation of cornea and is called as: 
1. UV -blindness 
2. Colour-blindness 
3. Evening- blindness 
4. Snow- blindness 

Subtopic:  Ozone Layer Depletion |
 83%
From NCERT
NEET - 2022
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The thickness of the ozone in a column of air from the ground to the top of the atmosphere is measured in terms of : 
1. Dalton units 
2. Svedberg units 
3. Monomeric units 
4. Dobson units 

Subtopic:  Ozone Layer Depletion |
 89%
From NCERT
NEET - 2022
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Which biological process leads to a decrease in the fish-eating bird population near a water body containing toxicants from industrial drainage? 
1. Algal bloom 
2. Biochemical oxygen demand 
3. Accelerated Eutrophication 
4. Biomagnification 

Subtopic:  Water Pollution |
 70%
From NCERT
NEET - 2022
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Assertion (A): Integrated organic farming is a cyclical, zero waste procedure.
Reason (R): Organic farming is environmentally sustainable.
1. Both (A) & (R) are true and (R) is the correct explanation of (A)
2. Both (A) & Reason are true but (R) is not the correct explanation of (A)
3. (A)is true statement but (R) is false.
4. Both (A)and (R) are false statements.
  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Resource Utilisation & Maintenance |
From NCERT
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Which one of the following is a wrong statement?
1. Particulate matter of the size 2.5 \(\mu m\) or less can cause inflammation and damage to the lungs 
2. A lake which is rich in organic waste may result in the mortality of fishes due to lack of oxygen 
3. DDT residues are rapidly passed through food chain because it is water soluble 
4. Photochemical smog pollution contain ozone 
Subtopic:  Air Pollution | Water Pollution |
 68%
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Match List I with List II 
List I List II
A. Ramsar Convention I. Removal of hazardous waste
B. Helsinki Declaration II. Sustainable development
C. Agenda-21  III. Limit the release of CFC
D. Basel Convention IV. Conservation of wetlands 
Choose the correct answer from the options given below: 
1. A-(IV), B-(III), C-(II), D-(I) 
2.  A-(III), B-(IV), C-(II), D-(I)
3. A-(IV), B-(III), C-(I), D-(II)
4.  A-(I), B-(II), C-(III), D-(IV)   
Subtopic:  Air Pollution | Solid Waste Pollution | Ozone Layer Depletion | Resource Utilisation & Maintenance |
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Arrange the following stages of lake succession in correct order.
A. Lake's fertility increases, plant & animal life burgeons and organic remains begin to de deposited on the lake bottom
B. Pollutants from the man's activities like effluents from industries and home radically accelerate the aging
C. With time, streams draining into lake introduce the nutrients, encourage the growth of active organisms
D. As slits and organic debris pile up lake grows slower and warmer, marsh plant takes roots in shallows begins to fill basin, gives way to large masses of bog, converting into land
E. Natural aging of lake by nutrients enrichment of its water

Choose the correct answer from the options given below
1. A → C → E → D → B
2. E → C → A → D → B
3. A → C → E → D → B
4. C → A → E → D → B
Subtopic:  Water Pollution |
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Photochemical smog is composed mainly of
1. CO + NO + PAN
2. HC + NO + PAN
3. O3 + PAN + NO
4. CO + PAN + HC
 
Subtopic:  Air Pollution |
 71%
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