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प्रश्न
How does ozone affect any ecosystem?
उत्तर १
Ozone (O3) forms a layer in the upper atmosphere. It is very essential for the life on this planet. It shields the surface of the earth from ultra-violet radiation (UV) coming from sun as these radiations are very harmful causing skin cancer and cataract in humans. It also does harm to the crops.
उत्तर २
Ozone (O3) is a molecule formed by three atoms of oxygen. Ozone, is a deadly poison. However, at the higher levels of the atmosphere, ozone performs an essential function. It shields the surface of the earth from ultraviolet (UV) radiation from the Sun. This radiation is highly damaging to organisms, for example, it is known to cause skin cancer, cataract and damage the immune system in human beings. It also destroys plants and reduces photosynthesis process.
APPEARS IN
संबंधित प्रश्न
Ozone depletion is occurring widely in the stratosphere; it leads to an ozone hole caused mainly due to ______.
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.
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?
What would happen if the ozone layer in the atmosphere completely disappears?
With the help of a flow diagram, describe how energy from the sun flows through various trophic levels.
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.
How is ozone formed in the higher level of atmosphere?
Which compounds are responsible for the depletion of ozone layer?
Explain ozone layer, its depletion and effects of ozone depletion.
Name the following pollutants:
Any two chemicals leading to the formation of ozone holes.
Match the items in column I with the closely related ones in column II.
| Column l | Column lI | ||
| (i) | Chlorofluorocarbons (CFCs) | (a) | Global warming |
| (ii) | Fly ash | (b) | Biodegradable |
| (iii) | Cow dung | (c) | Nuclear radiation pollutant |
| (iv) | CO2 and methane | (d) | Acid rain |
| (v) | Sulphur dioxide | (e) | Industrial waste |
| (vi) | Iodine-131 | (f) | Ozone depletion |
Describe the methods of saving the ozone layer.
State the chemicals responsible for ozone layer destruction.
How is ozone formed in the upper atmosphere? State its importance. What is responsible for its depletion? Write one harmful effect of ozone depletion.
Very short answer type question
Where was the ozone hole discovered?
Long answer type question
Montreal protocol is an essential step. Why is it so?
The substance which is chiefly responsible for the depletion of ozone layer is ______.
