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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.
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संबंधित प्रश्न
What are the causes of depletion of ozone layer? Which diseases are likely to be caused if the ozone layer will become thinner?
How Ozone is Formed?
The excessive exposure of humans to ultraviolet rays results in:
- damage to immune system
- damage to lungs
- skin cancer
- peptic ulcers
O2 is converted into O3 by the action of :
(a) infrared radiations
(b) ultraviolet radiations
(c) gamma radiations
(d) cosmic radiations
How is ozone formed in the higher level of atmosphere?
Why is ozone layer called ozone umbrella/shield?
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 |
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.
State two effects of ozone depletion.
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.
Enumerate the damage to humans, animals and plants caused due to ozone depletion.
Give reason for the following:
The formation of ozone involves a chemical reaction called photolysis.
Give reason for the following:
Destruction of ozone layer is harmful for both humans and plants.
Bad ozone is present in ______
Which of the following radiations is responsible for the conversion of atmospheric oxygen to ozone?
The substance which is chiefly responsible for the depletion of ozone layer is ______.
Global warming is a phenomenon related to ______.
Gas A, found in the upper layers of the atmosphere, is a deadly poison but is essential for all living beings. The amount of this gas started declining sharply in the 1980s.
- Identify Gas A. How is it formed at higher levels of the atmosphere?
- Why is it essential for all living beings? State the cause for the depletion of this gas.
World Ozone day is celebrated on ______.
