Advertisements
Advertisements
Question
Fill in the Blanks:
______ is manmade compounds that have been widely used as refrigerants and in spray propellants and foam blowing.
Solution
Chlorofluorocarbons is manmade compounds that have been widely used as refrigerants and in spray propellants and foam blowing.
APPEARS IN
RELATED QUESTIONS
You have been selected to talk on 'ozone layer and its protection" in the school assembly on 'Environment Day.'
(a) Why should ozone layer be protected to save the environment?
(b) List any two ways that you would stress in your talk to bring in awareness amongst your fellow friends that would also help in protection of ozone layer as well as the environment.
How Ozone is Formed?
What is UNEP?
Depletion of ozone in the ozone layer is a cause for our worry. Why?
Why is ozone layer called ozone umbrella/shield?
Give reason for the following:
Destruction of ozone layer is harmful for both humans and plants.
Which of the following may be a conclusion of the excessive exposure of humans to sun’s ultraviolet rays?
- Peptic ulcers
- Eye disease like cataract
- Damage to lungs
- Skin cancer
The substance which is chiefly responsible for the depletion of ozone layer is ______.
Why was there a sharp in the amount of ozone in the atmosphere in 1980's.
In 1987, an agreement was formulated by the United Nations Environment Programme (UNEP) to freeze the production of “X” to prevent the depletion of “Y”. “X” and “Y” respectively referred to here are ______.