Related Questions

Very small amount of air pollutants are present in stratosphere also; though most of the atmospheric pollutants are present in the troposphere. Which of the following atmospheric pollutants does not cause the ozone layer depletion in atmosphere at tremendous rate?
A CO
B SO2
C NOx
D CFC (chloro fluoro carbons)
There are blank spaces in the following passage which have been numbered . These numbers are printed below the passage and against each some words are suggested . Find out the word that best fit the blank spaces. Global Strategies to control infective disease have historically included the erection of barriers to international travel and ___ (24) _______. Keeping people with such deadly disease outside national borders has ___ (25) _______ as an important public health policy in the human immunodeficiency virus (HIV) epidemic . Betwwn 29 and 50 countries ___ (26) _____ to have introduced border restrictions on HIV _ positive foreigners ,usually those planning an ___ (27) ___ stay in the country , such as students , workers or seamen.
A migration
B immigrate
C emigration
D immigration
Often visible as smog , ozone is formed in the atmosphere form" hydrocarbons and nitrogen oxides , two major pollutants emitted by automobiles react with sunlight .
A ozone is formed in the atmosphere from
B ozone is formed in the atmosphere when
C ozone is formed in the atmosphere when
D ozone is formed in the atmosphere ,and when
Choose the correct option to replace the quotation part of each sentence. Often visible as smog, 'ozone is formed in the atmosphere from' hydrocarbons and nitrogen oxides, two major pollutants emitted by automobiles, react with sunlight.
A ozone is formed in the atmosphere from
B ozone is formed in the atmosphere when
C ozone is formed in the atmosphere, and when
D ozone, formed in the atmosphere when
Number of pollutants which are resulting from the influence of human beings is increasing rapidly.
A humance
B anthropogenic
C man-produced
D anthropology
Lead cadmium and mercury are all examples of water pollutants called:
A Metalloid
B Alkaline metals
C Heavy metals
D Alkaline earth metals
Which of the following pollutants is the major contributor to photochemical smog?
A Peroxynitrates
B Hydroperoxides
C Nitrogen dioxide
D Ozone
Main pollutants released from iron and steel industry are
A CO, CO2 and SO2
B NO, SO3 and H2S
C CO2, H2S and NO2
D CO2, NO2 and SO3
Which one of the following environmental pollutants has the problem of biomagnifications?
A SO2
B NO3
C Hg fungicides
D O3 and CO2
Carcinogenic air pollutants cause
A Bone decay
B Cancer
C Asphyxiation (suffocation)
D Anemia

Next steps