19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Acid rain is due to : I. Oxides of nitrogen II. Oxides of sulphur III. Methane present in the air
How can we reduce the rate of global warming?
Aerosol particles of oxides are ammonium salts in rain drops results in …A… here A refer to.
Which of the following air pollutants is deposited as dry-deposition ?
Acid rain is harmful for: I. Agriculture II. Aquatic ecosystem III. Buildings and other structures made of stone or metal. Select the correct option;
Which of the following are involved in the formation of PAN? I. NO2 II. O3 III. Unburnt hydrocarbon IV. CO2
Which of the following is/are common components of photochemical smog?
Which of the following components of photochemical smog act as powerful eye irritiants? I. O3 II. PAN III. Hydrocarbon
Which of the following is/are the primary precursor(s) of the photochemical smog?
Catalytic converters are used to control…A… Here, A refers to.
Point out the plants which are most effective for controlling of photochemical smog ?
Which of the following protect us from the harmful UV-radiation coming from the sun? I. O2 II. O3 III. N2 IV. CO2
The disease caused by UV radiation(s) in human is/are: I. Melanoma (skin cancer) II. Heart attack III. Hypertension IV. Cough cold
Which of the following reaction(s) is/are happen during the formation of O3 layer in stratosphere ? (a) UV O (g) O(g)+O(g) -> (b) UV O(g)+O (g) (g)O (g) (c) UV O (g) O2(g)+O(g)
Thermodynamically ozone is :
How do CFCs cause thinning of ozone layer in stratosphere ?
The main reason of ozone layer depletion is : I. release of CFCs II. release of CO2 III. release of CH4
CFCs also knows as:
CFCs are used in refrigerators, air conditioners because:
CFCs deplete the ozone layer because
The depletion of ozone layer is known as I. ozone hole II. ozone centre III. ozone point
The depletion of ozone hole was first reported in …I… over Antarctica. Here I refers to :
The consequence of global warming may be… I. Increase in average temperature of the earth II. Melting of Himalayan Glaciers III. Increased biochemical oxygen demand. IV. Eutrophication
Which of the following belongs to secondary air pollutants?
Match the Column I with the Column II and choose the correct option from cods given below : Column I Column II A. Normal B. Acid rain 1. H2CO3 2. HNO3 3. HCl 4. H2SO4 Codes : A B