Water cycle does not involve which of the following?
(a) Evaporation
(b) Condensation
(c) Formation of clouds
(d) Rainwater harvesting
1 Answers
Discuss how rainwater harvesting in semi-arid regions of Rajasthan is carried out.
Houses in the semi – arid regions of Rajasthan have traditionally constructed tanks for storing drinking water. They are big and are a part of the well-developed rooftop rainwater harvesting...
1 Answers 2 views
Comment on the following statements: (a) Evaporation produces cooling. (b) Rate of evaporation of an aqueous solution
(a) Evaporation produces cooling as the particles at the surface of the liquid gain energy from the surroundings and change into vapour thereby producing a cooling effect. (b) Air around us...
1 Answers 1 views
State for each of the following whether it is due to evaporation or condensation:
(a) Water drops appear on the outer surface of a glass containing cold water. Condensation (b) Steam rising from wet clothes while they are ironed. Evaporation (c) Fog appearing on a cold...
1 Answers 1 views
Which of the following activity does not involve use of water?
(d) Drying wet clothes
1 Answers 1 views
Describe how modern adaptations of traditional rainwater harvesting methods are being carried out to conserve and store water
Traditional methods of rainwater harvesting like ‘the rooftop method’ are becoming popular in India. In Gendathur village, Mysore, about 200 households have adopted the rooftop rainwater harvesting method, thereby making...
1 Answers 4 views
What is water harvesting? Explain the traditional water harvesting system with a suitable diagram. Write about the techniques of water harvesting.
Water harvesting is a technique of capturing rain water when it falls and taking measures to keep the water clean. The two ways by which water harvesting can be undertaken are: (i)...
1 Answers 2 views
“Rainwater harvesting system is viable alternative both ways socio-economically and environmentally.” Support the statement with three examples.
(i) Keeping into view the disadvantages and rising resistance against the multipurpose dams, water harvesting is considered viable alternative both socioeconomically and environmentally. (ii) For example, Rainwater harvesting is the most...
1 Answers 2 views
Describe any three traditional methods of rainwater harvesting adopted in different parts of India.
(i) In hilly and mountainous regions, people build diversion channels like 'gul' or 'kul' in Western Himalaya for agriculture. (ii) Roof-top rainwater harvesting was commonly practised to store drinking water, particularly...
1 Answers 1 views
Explain the working of underground tanks as a part of roof top rainwater harvesting system practised in Rajasthan.
(i) In semi-arid and arid regions of Rajasthan, almost all the houses traditionally had underground tanks for storing drinking water. They are an extremely reliable source of drinking water when other...
1 Answers 1 views
Discuss how rainwater harvesting in semiarid regions of Rajasthan is carried out.
Houses in the semi arid regions of Rajasthan have traditionally constructed tanks for storing drinking water. They are big and are a part of the well-developed rooftop rainwater harvesting system....
1 Answers 1 views