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प्रश्न
Write four adverse effects of radiations on human body.
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उत्तर
- Genetic changes occur.
- Vision is adversely affected.
- Tissues in the body are destroyed.
- Cancerous ulceration occurs due to higher radiation from X-rays.
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संबंधित प्रश्न
Explain the statement - ‘we have got this Earth planet on lease from our future generations and not as an ancestral property from our ancestors.’
Write a short note on environmental conservation.
Write a short note on disaster and its management.
How will you justify that overcoming the pollution is a powerful way of environmental management?
Write the factors affecting the environment.
Write six strategies implemented by you for conservation of environment.
Why does the human beings have important place in environment?
How can biodiversity be conserved?
Complete the following chart:
Attempts at various levels are performed for conserving environment. Which role would you like to perform. Give two actions each:
- Prevention
- Control
- Production
- Awareness
- Conservation
Earthquake : Natural factor : : Industrialization : : _____________
Write any two man-made factors affecting the environment.
We should conserve our natural resources and energy
What is meant by conservation of environment?
Complete the following table taking into account the relation between the entries in three columns:
| Air pollution | Water pollution | Soil pollution | |
| Components | Gases: CO2, CO, Hydrocarbons, Sulphur, NOx, Hydrogen sulphides etc. Solid: dust, ash, carbon, lead, asbestos, etc. |
||
| Source | Industrial wastes, domestic wastes, sewage, chemicals discharged from industries, pesticides used in agriculture. |
||
| Effect | Soil erosion, retarded growth of plants/ crops, Nutritional deficiency etc. |
Why is there a need for conservation of the environment?
Mention one measure to control air pollution.
Match the correct pair:
| Column 'A' | Column 'B' | ||
| (1) | Forest Conservation Act |
(a) | 1986 |
| (b) | 1980 | ||
| (c) | 1970 |
