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प्रश्न
The chemicals leading to the formation of ozone holes.
उत्तर
Chloroflurocarbons/CFCs
APPEARS IN
संबंधित प्रश्न
Fill in the following blank with suitable word :
Ultraviolet rays can cause skin..............
What are the causes of depletion of ozone layer? Which diseases are likely to be caused if the ozone layer will become thinner?
Write the harmful effects of ozone depletion.
What is UNEP?
The gas A is used by most of the animals to obtain energy from food by the process of respiration. When A is acted upon by radiation X, it gets converted into another gas B which is an allotrope of A but poisonous when inhaled. B forms a kind of layer C in the upper atmosphere which absorbs radiations X coming from a source Y and prevent them from reaching the earth. Some chemicals Z released from the various devices on the earth are destroying the layer C slowly. In fact, a hole has already been formed in layer C over the area D of the earth.
(a) What are gases (i) A, and (ii) B? Write their molecular formulae.
(b) Name the layer C.
(c) What are (i) X, (ii) Y, and (iii) Z?
(d) Name the area D.
(e) Name any two human ailments which may be caused by X.
Why is ozone layer called ozone umbrella/shield?
The following picture depicts a certain phenomenon
- Name the phenomenon and explain it.
- Enlist the sources that are responsible for the above mentioned phenomenon.
- List out the effects of the above phenomenon on humans.
True or False:
Ozone in the Troposphere is a harmful pollutant.
Depletion of ozone is mainly due to
Why was there a sharp in the amount of ozone in the atmosphere in 1980's.
