Questions
Which of the following is not a source of fresh water?
- Rivers
- Lakes
- Streams
- Ponds
- Oceans
Which of the following is/are the uses of water?
- Crop irrigation
- Cooking
- Drinking
- Generation of hydroelectricity
- All of the above
The density of water is similar to that of ________________.
- symplast
- cell protoplasm
- vacuole
- apoplast
- cytosol
Which day is celebrated as Worlds Water Day?
- March 23
- April 7
- March 15
- March 22
- April 18
Which of the following statements is/are false?
a. Only 2.6% of the total water resources of the world consists of fresh water.
b. Water plays a vital role in the in the metabolic reactions taking place in our body.
c. Due to its properties, water is not a universal solvent.
- Only a
- Only a and b
- Only b
- Only c
- Only b and c
Which of the following sources hot water has highly saline and contains about 3.5% soluble salts?
- River
- Ocean
- Spring
- Lake
- Pond
Which of the following statements is/are false?
a. Water is known as the elixir of life.
b. Spring water contains dissolved minerals from the surrounding rocks.
c. Plenty of surface water is available in nature in wells and springs.
- Only a
- Only a and b
- Only c
- Only b and c
- Only b
Which of the following factor is not responsible for depletion of water table?
- Deforestation
- Increase in agriculture needs
- Excessive usage due to increase in population
- Increase in industrial activities
- Excessive rainfall
Match the forms of water with their sources:
| 1. Solid | a. Water vapour in atmosphere |
| 2. Liquid | b. Snow covered mountains |
| 3. Gaseous | c. Oceans |
- 1 - b, 2 - c, 3 - a
- 1 - b, 2 - a, 3 - c
- 1 - c, 2 - b, 3 - a
- 1 - c, 2 - a, 3 - b
- 1 - a, 2 - c, 3 - b
Which of the following is/are steps necessary for the conservation of water?
- Controlling floods by interlinking the rivers.
- Constructing reservoirs and dams.
- Using sprinklers for irrigation.
- Treatment of domestic and municipal waste water.
- All of the above
Of the total water available, __________ is fit for human consumption.
- 70%
- 0.006%
- 97.4%
- 3.5%
- 5%
Which of the following is not a step to conserve water in our houses?
- Avoiding cleaning utensils with a running tap
- Using smaller cisterns in toilets
- Using running shower for bathing
- Repairing leaking pipelines
- Avoiding overflowing taps
Match the following:
| 1. Ground water | a. The type of water that has collected on the ground level and can be collected by precipitation. |
| 2. Water table | b. Water found underground in the cracks and spaces in soil, sand and rock. |
| 3. Surface water | c. The highest underground level at which the rocks and soil in a particular area are completely wet with water. |
- 1 - b, 2 - a, 3 - c
- 1 - b, 2 - c, 3 - a
- 1 - c, 2 - b, 3 - a
- 1 - c, 2 - a, 3 - b
- 1 - a, 2 - c, 3 - b
Which of the following statements is/are false?
a. Rainwater harvesting is a solution to the problem of depleting groundwater.
b. To obtain water from great depths, farmers have to deepen their tube wells every year.
c. Water is more easily available in arid regions as compared to other regions.
- Only a
- Only a and b
- Only b
- Only a and c
- Only c
Match the following:
| 1. Precipitation | a. The process by which water collects as droplets on a cold surface when humid air is in contact with it. |
| 2. Condensation | b. The process of a substance in a liquid state changing to a gaseous state due to an increase in temperature and pressure. |
| 3. Transpiration | c. Any kind of water that is falling to the Earth from the clouds. |
- 1 - a, 2 - c, 3 - b
- 1 - c, 2 - b, 3 - a
- 1 - c, 2 - a, 3 - b
- 1 - a, 2 - b, 3 - c
- 1 - b, 2 - a, 3 - c