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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
What are the advantages of rainwater harvesting?
Name two factors which can be used to find whether river water has been contaminated.
Name any five sources of water (other than rivers)
Which environmental problem is associated with the construction of high-rise dams?
Define – Freshwater.
Write a short note on Farm Ponds.
If the total water on earth be 100% the percentage of freshwater is ______.
Specific constituents such as nitrogen, phosphorus, suspended solids, and heavy metals found in the wastewater are removed during the ______ treatment of the water recycling process.
Which one of the following is not an advantage of farm ponds?
Match the following:
| Secondary Treatment | Disinfection |
| Grey water | Floatation |
| Primary Treatment | Reusable wastewater |
| Tertiary Treatment | Sedimentation |
