19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Atmospheric gases trap the sun’s heat near the earth’s surface and keep it warm. This is called …A… Here A refers to
CO emitted automobiles prevents O2-transport to body tissues by:
Match the terms given in Column I with the compounds given in Column II and choose the correct option from the codes given below. Column I Column II A. Acid rain B. Photochemical smog C. Combination with haemoglobin…
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
Match the Column I with Column II and choose the correct option from the codes given below : Column I Column II A. SO2 B. NO2 C. CO 1. Binds with haemoglobin 2. Leads to stiffness of flower Buds 3. Irritant red haze i…
Match the Column I with Column II and choose the correct option from the codes given below : Column I Column II A. Gaseous air pollutants B. Particulate pollutants 1. CO2 2. Smoke 3. Smog 4. O3 Codes A B
Which of the following is/are the harmful effect(s) of UV radiation? I. It causes mutation in the cell II. UV radiation leads to ageing of skin III. It kills many phytoplankton IV. It causes global warming
Polar stratospheric cloud is formed over Antarctica during ..A.. Here, A refers to
Thermodynamically ozone is :
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)
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 protect us from the harmful UV-radiation coming from the sun? I. O2 II. O3 III. N2 IV. CO2
Which of the following are involved in the formation of PAN? I. NO2 II. O3 III. Unburnt hydrocarbon IV. CO2
Classical smog is also called …A…smog. Here A refers to
Classical smog is a mixture of
The word smog stands for :
Which of the following is the major particulate matter emitted by vehicles.
The effect of particulate pollutants are largely dependent on the …A… Here, A refers to.
Non-viable particulates are classified on the basis of :
Which of the following is not a viable particulates :
The viable particulate stand for : I. Minute living organisms present in atmosphere II. Minute non-living particles present in atmosphere
What do you mean by Taj-Trapezium?
The Taj Mahal in India is affected by pollutant:
Use of chlorofluorocarbon is not encouraged because (KCET 2005)
Assertion (A): London smog is oxidising in nature. Reason (R): London smog contains O3, NO2 and hydrocarbons. (AIIMS2009)