Read the following statements and chooser the correct option
Statement A: Electrostatic precipitator can remove over 99% particulate matter present in exhaust from a thermal power plant.
Statement B: According to CPCB particulate size 2.5m or less in diameter are responsible for causing the greatest harm to human health.
1. Only statement A is correct.
2. Only statement B is correct.
3. Both statements A and B are correct.
4. Both statements A and B are incorrect.
State True (T) or False (F) for the following statements and select the correct option
A. Motor vehicles equipped with catalytic converter should use unleaded petrol because lead in the petrol inactivates the catalyst.
B. Recently government of India has instituted the Amrita Devi Bishnoi Wildlife Protection Award for
individuals from urban areas that have shown extraordinary courage and dedication in protecting
wildlife.
C. Reforestation may occur naturally in a deforested area.
A B C
1. T T F
2. T F T
3. T F F
4. F F T
Select the correct option regarding relative contribution of various greenhouse gases to total global warming.
1.
2.
3.
4.
Which one is not an example of primary pollutants?
1. DDT 2. CO
3. Pollen 4. PAN
In which part of the atmosphere ‘good ozone’ is found?
1. Troposphere 2. Stratosphere
3. Ionosphere 4. Exosphere
Which one is not an effect of increase in the level of greenhouse gases?
1. fertilisation effect.
2. EI Nino effect.
3. Snow blindness.
4. Warming of troposphere and cooling of stratosphere and thermosphere
Which statement is incorrect for photochemical smog?
1. It is mainly , PAN and .
2. It is called brown air and grey air.
3. It causes blue-baby syndrome.
4. It is formed in traffic congested cities where warm condition and intense solar radiations are present.
It has been recommended that storage of nuclear waste, after sufficient pre-treatment, should be done in suitably shielded containers buried within rocks about _____ deep below the earth’s surface.
1. 100 m
2. 50 m
3. 500 m
4. 200 m
Practical, hygienic, efficient and cost effective solution to human waste disposal is :-
1. Natural toilets
2. Eco-friendly toilets
3. Eco-san toilets
4. Biological sanitation
In which device the exhaust is passed through a spray of water or lime for removal of gases as well as particles ?
1. ESP
2. Scrubber
3. Catalytic converter
4. Both (1) and (2)