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प्रश्न
Water becomes ice on ______.
विकल्प
heating
Freezing
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उत्तर
Water becomes ice on Freezing.
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संबंधित प्रश्न
Name the bacteria whose presence in water indicates the contamination with disease-causing micro-organisms.
What is the main purpose of rainwater harvesting?
The pH of a sample of water collected from a river is found to be in the range of 3.5 to 4.5. The most likely reason for this is the waste being discharged into the river from a :
(a) soap and detergent manufacturing factory
(b) car battery manufacturing factory
(c) alcohol manufacturing factory
(d) plastic cups moulding factory
What is meant by Rain Water Harvesting?
What is a rain water harvester? How does it work?
Mention any three water harvesting systems practised in India.
Answer the following question.
List two main advantages associated with water harvesting at the community level.
What is the purpose of rainwater harvesting?
Define – Freshwater.
It is important to make small check dams across the flooded gullies because they
- hold water for irrigation
- hold water and prevent soil erosion
- recharge ground water
- hold water permanently
