write the difference between three forts mentioned in the lesson of geography std 10
Answers
Answer:
Question 1.
Give some facts and figures about the water resources in the world.
Answer:
96.5 per cent of the total volume of world’s water is estimated to exist as oceans and only 2.5 per cent exists as fresh water.
70 per cent of the fresh water occurs as ice sheets and glaciers in Antarctica, Greenland and the mountainous regions of the world. Less than 30% is stored as groundwater in the world’s acquifiers.
Question 2.
Explain how water becomes a renewable resource?
Answer:
Fresh water is mainly obtained from surface run off and ground water. This is continually being renewed and recharged through the hydrological cycle.
All the water moves within the hydrological cycle making water a renewable resource.
Question 3.
What percentage of global precipitation does India receive?
Answer:
India receives nearly 4 per cent of the global precipitation.
Question 4.
Where is India ranked in terms of water availability per person per annum? By what year will India join countries having absolute water scarcity?
Answer:
India ranks 133 in the world in terms of water availability per person per annum. By 2025, large parts of India will join countries having absolute water scarcity.