If is absent in the atmosphere of the earth, then:
1. Temperature will decrease
2. Temperature will increase
3. Plants will flourish well
4. No effect
Besides CH4 and CO2, another green house gas is:
1. SO2
2. NH3
3. N2O
4. CFC
Temperature variation in Pacific ocean in present time is called:
1. Cyclone effect
2. El Nino effect
3. Greenhouse effect
4. Gaudikov's effect
Sewage purification is performed by:
1. Microbes
2. Fertilisers
3. Antibiotics
4. Antiseptics
Most stable pesticides:
1. Organophosphates
2. Organochlorines
3. Bordeaux mixture
4. Azaderectnin
Best economic method to harvest solar energy:
1. Solar cell
2. Energy plantation
3. Cultivation of sugar cane then energy obtain by burning it
4. Solar cooker
In 1984, the Bhopal gas tragedy took place because methyl isocyanate:
1. Reacted with ammonia
2. Reacted with CO2
3. Reacted with water
4. Reacted with DDT
Bhopal gas tragedy is related to:
1. Methane
2. Carbon monoxide
3. Methyl Isocyanate (MIC)
4.
Concentration of DDT is highest in:
1. Primary consumer
2. Producers
3. Top consumer
4. Decomposers
Recently Govt. of India has allowed the mixing of alcohol in petrol. What is the amount of alcohol permitted for mixing in petrol:
1. 10–15%
2. 10%
3. 5%
4. 2.5%