Q. What is the main cause of increase in air pollution in the 20th century?

View solution

Q. Natural causes also results in air pollution.

View solution

Q. How many primary pollutants are there?

View solution

Q. What are secondary pollutants?

View solution

Q. Which is the colorless, odorless and toxic gas which produced when organic materials incompletely burn?

View solution

Q. Which of the following cause soot in the environment?

View solution

Q. What is aerosol?

View solution

Q. What is smog?

View solution

Q. Aerosol + solid particles + liquid particles results in____________________

View solution

Q. Use of unleaded petrol is one way of reducing pollutant.

View solution

Q. Which is responsible for the greatest exposure to carbon dioxide for living organisms?

View solution

Q. How excessive water loss takes place in plants?

View solution

Q. How does asthma cause to human beings?

View solution

Q. What is the reason for reduced in the plant growth?

View solution

Q. Which dioxide damages the flower process in plants?

View solution

Q. Human’s respiratory system doesn’t many mechanisms that help to protect them from air pollution.

View solution

Q. What is the main reason for ozone depletion?

View solution

Q. Which of the following component is more dangerous to ozone layer?

View solution

Q. Why ozone depletion more over the South Pole?

View solution

Q. When did India signed the Montreal Protocol?

View solution