Grade 12th pass10 grade science
The main purpose of water harvesting is not to hold rainwater on the surface of the Earth but to make rainwater percolate under the ground so as to recharge groundwater. Which of the following sentences are true for water stored in the ground? (i) It does not evaporate. (ii) It spreads out to recharge wells and provides moisture for crops over a wide area. (iii) It does not promote breeding of mosquitoes. (iv) It is utilised for benefit of the local population.
The main purpose of water harvesting is not to hold rainwater on the surface of the Earth but to make rainwater percolate under the ground so as to recharge groundwater. Which of the following sentences are true for water stored in the ground? (i) It does not evaporate. (ii) It spreads out to recharge wells and provides moisture for crops over a wide area. (iii) It does not promote breeding of mosquitoes. (iv) It is utilised for benefit of the local population.
