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प्रश्न
How does a desert plant adapt to the dry, warmer environmental conditions ?
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उत्तर
In order to cope up with dry, warmer environmental conditions, a desert plant adapts itself in the following ways:
- It has has thick cuticle on its leaf surface and the stomata are arranged in deep pits to reduce water loss.
- Its special photosynthetic pathway, Crassulacean Acid Metabolism (CAM), enables its stomata to remain closed during day time.
- Its leaves are reduced to spines, and photosynthesis is carried out via flattened stems.
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संबंधित प्रश्न
Since October 02, 2014 “Swachh Bharat Abhiyan” has been launched in our country.
- Write your views on this initiative giving justification.
- As a biologist name two problems that you may face while implementing the programme in your locality.
- Suggest two remedial methods to overcome these problems.
Match the items given in columns A and B:
| Column ‘A’ | Column ‘B’ | ||
| (a) | Catalytic converter | (1) | Particulate matter |
| (b) | Electrostatic precipitator | (2) | Carbon monoxide and nitrogen oxides |
| (c) | Earmuffs | (3) | High noise level |
| (d) | Landfills | (4) | Solid wastes |
Explain industrial melanism.
When there is excessive sweating, retains water with the help of ______.
What is forest management?
Give reason for the following
Fracking affect the environment.
How can we conserve forests?
Write short note on Green House Effect.
Write a short note on Acid Rain.
Pollutants resulting from human activities are mainly discharged in ______.
Pollutants are classified into ______.
Example of secondary pollutants.
Pollutant brings about
Match the following and choose the correct option.
| Column I | Column II |
| A. Environment Protection Act | i. 1974 |
| B. Air Prevention & Control of Pollution Act | ii. 1987 |
| C. Water Act | iii. 1986 |
| D. Amendment of Air Act to include noise as an air pollutant | iv. 1981 |
For treatment of e-waste, which is the most suitable solution?
Match the following and choose the correct option.
| Column I | Column II |
| A. Environment Protection Act | i. 1974 |
| B. Air Prevention & Control of Pollution Act | ii. 1987 |
| C. Water Act | iii. 1986 |
| D. Amendment of Air Act to include noise as an air pollutant | iv. 1981 |
The correct match is:
Match the following and choose the correct option.
| Column I | Column II | ||
| A. | Environment Protection Act | i. | 1974 |
| B. | Air Prevention & Control of Pollution Act | ii. | 1987 |
| C. | Water Act | iii. | 1986 |
| D. | Amendment of Air Act to include noise as an air pollutant | iv. | 1981 |
