Q. Which of the following statements is/are correct about freshwater resources?
1.It accounts for only about 2.7 per cent of earth’s water resources.
2.Ninety percent of earth’s freshwater resources occur as ice sheets and glaciers.
3.Only one per cent of freshwater is available and fit for human use.
How many of the statements given above are not correct?
Answer: A
Notes:
Explanation: Water is a vital renewable natural resource. Three fourths of the earth’s surface is covered with water. It is therefore appropriately called the ‘water planet’.
- It was in the primitive oceans that life began almost 3.5 billion years back.
- Even today, the oceans cover two-thirds of the earth’s surface and support a rich variety of plant and animal life. The ocean water is, however, saline and not fit for human consumption.
- Fresh water accounts for only about 2.7 per cent. Nearly 70 per cent of this occurs as ice sheets and glaciers in Antarctica, Greenland and mountain regions. Due to their location, they are inaccessible.
- Only 1 per cent of freshwater is available and fit for human use. It is found as ground water, as surface water in rivers and lakes and as water vapour in the atmosphere.
Source: NCERT
