Which of the following statements is correct?
Which of the following statements is wrong?
Which of the following statements about photochemical smog is wrong?
Which of the following statements is not true about classical smog?
The non-viable particulate is among the following is
The substance having the largest concentration in acid rain?
Acid rain contains H2SO4 > HNO3 > HCl.
Which of the following gases is not a green house gas?
Which of the following is not a consequence of greenhouse effect?
The mosquitoes will increase their population and spread malaria.
The pollutants which came directly in the air from sources are called primary pollutants. Primary pollutants are sometimes converted into secondary pollutants. Which of the following belongs to secondary air pollutants?
Dinitrogen and dioxygen are main constituents of air but these do not react with each other to form oxides of nitrogen because __________.