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What is/are true for rainwater harvesting?
1. It is to collect rainwater and store it for later use.
2. There are two techniques for it.
Which of the following is/are true for condensation in water cycle?
1. At sufficient heights, the air becomes so cool that the water vapour present in it
condenses to form tiny drops of water called droplets.
2. It so happens that many droplets of water come together to form larger sized
clouds.
Consider the following statements:
1. The process by which water continually changes its form and circulates is called water vapour.
2. Terrarium is an artificial enclosure for keeping small house plants.
Which of the above mentioned statements is/are correct?
Consider the following
1. Oceans
2. Rivers
3. Ponds
4. Springs
5. Glaciers
Which of the above re the major sources of fresh-water?
Consider the following statements:
1. Salinity is the amount of salt in grams present in 1000 grams of water.
2. The average salinity of the oceans is 15 parts per thousand.
Which of the above mentioned statements is/are correct?
Consider the following statements:
1. Dead Sea in North America has salinity of 340 grams per litre of water.
2. Swimmers can float in it because the increased salt content makes it dense.
Which of the above mentioned statements is/are correct?
The World Water Day is celebrated on