Advertisements
Advertisements
प्रश्न
The prime source of chlorofluorocarbons is ______.
पर्याय
Domestic sewage
Refrigeration equipment
Industrial effluents
Vehicular emissions
Advertisements
उत्तर
The prime source of chlorofluorocarbons is refrigeration equipment.
Explanation:
Gaseous compounds, such as CFCs (chlorofluorocarbons), released from refrigerators, aerosol-sprayers and the packing material styrofoam, rise into the atmosphere.
APPEARS IN
संबंधित प्रश्न
How depletion of the ozone layer affect living organisms?
What would happen if the ozone layer in the atmosphere completely disappears?
O2 is converted into O3 by the action of :
(a) infrared radiations
(b) ultraviolet radiations
(c) gamma radiations
(d) cosmic radiations
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?
How is ozone formed in the upper atmosphere? State its importance. What is responsible for its depletion? Write one harmful effect of ozone depletion.
Name or state the following:
An atmospheric pollutant responsible for both global warming and ozone depletion.
Name or state the following:
The atom which reacts with oxygen to form ozone.
A motor car, with its glass totally closed, is parked directly under the sun. The inside temperature of the car rises very high. Explain why?
Why was there a sharp in the amount of ozone in the atmosphere in 1980’s.
