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प्रश्न
Water is very precious for all living beings. What will happen in future if we do not save water now?
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उत्तर
Water is the gift of nature, we must learn to honour it. If we do not use water judiciously and do not save it, there will be a scarcity of water and we will not be able to do various activities where water is required. It will also affect life on earth.
Some of the problems that would be faced by people due to water scarcity are:
- Daily activities will become very difficult in the shortage of water.
- Crop production will be affected resulting in an insufficient supply of food.
- People would have to buy water at high prices.
- People may drink dirty (contaminated) water which causes water-borne diseases such as cholera.
Due to water scarcity, sufficient water will not be available to plants. Plants need water to prepare their food through the process of photosynthesis. If water is not available to plants, the green character of the planet will be lost. This may mean the end of all life, for a world without plants will mean no food, no oxygen, not enough rain and innumerable other problems.
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संबंधित प्रश्न
Describe some of the problems associated with the construction of dams.
Why should we save rain water?
Which one of the following is responsible for the sustenance of underground water?
Name the component of sunlight which facilitates drying of wheat after harvesting.
In our country, there are attempts to increase the height of several existing dams like Tehri and Almati, dams across Narmada. Choose the correct statements among the following that are a consequence of raising the height of dams.
(i) Terrestrial flora and fauna of the area are destroyed completely.
(ii) Dislocation of people and domestic animals living in the area.
(iii) Valuable agricultural land may be permanently lost.
(iv) It will generate permanent employment for people.
Which of the following are/ are not the consequence/consequences of building high-rise dams?
i. Loss of biodiversity
ii. Depletion of the natural habitats of wild animals
iii. Soil erosion leading to the infertility of the land
iv. Fall in the groundwater level
Choose the correct option from the following.
Which of the following activities will prove to be effective in preventing floods?
i. Removing the topsoil
ii. Afforestation
iii. Construction of dams
iv. Cutting of trees
Choose the correct option from the following.
How is 3% of freshwater distributed?
Khadins, Bundhis, Ahars and Kattas are ancient structures that are examples for
Match the following:
| Secondary Treatment | Disinfection |
| Grey water | Floatation |
| Primary Treatment | Reusable wastewater |
| Tertiary Treatment | Sedimentation |
