Questions
__________ is not a consequence of floods.
- Depletion in ground level of water
- Soil erosion
- Damage to crops
- Loss of habitat of plants and animals
- Risk of water borne diseases
Clouds are categorised based on their shape and height in the atmosphere. Which of the following is not a form of cloud?
- Cumulus
- Cirrus
- Stratus
- Altostratus
- Strombolian
After taking a few ice cubes in a glass, Tanya kept it on a table. Within a few moments, small water drops were formed on the cold outer surface of the glass. This process is called ____________.
- evaporation
- transpiration
- condensation
- perspiration
- precipitation
Which of the following factors does not increases the rate of evaporation?
- Decrease in temperature
- Larger area of exposed surface
- Decrease in external pressure
- Increased movement of air
- Increased intensity of light
A large accumulation of underground water in soil or rock is called ___________.
- aquifers
- deposition
- delta
- percolation
- sludge
What are the different sources of ground water?
- Meteoric water
- Condensational water
- Connate water
- Juvenile water
- All of the above
Which of the following is not a property of water?
- Malleability and ductility
- Tasteless and odourless
- It is transparent
- Water is a good solvent
- Salt water is a good conductor of electricity
Among the many uses of water, in India, it is used as a coolant in cars. What is the reason for this?
- Coolants are scarcely available
- Water has a high specific heat
- Low freezing point
- Due to the presence of salts in coolants
- High boiling point
Which of the following is the purest form of water?
- Rain water
- River water
- Spring water
- Sea water
- Distilled water
Which of the following statements is false?
(a) The falling of drops of water from the clouds is called precipitation.
(b) The clouds rise higher in the atmosphere because they are warmer and lighter than the surrounding air.
(c) Ocean water is very useful for use in agriculture, animal and human use.
(d) Earth has water in solid, liquid and gaseous state.
- Both a and b
- Only c
- Only d
- Both b and d
- Only a
Riya poured water in the glass and put some ice in it. She noticed that the ice was floating in the glass. Which of the following is the correct reason as to why ice floats on water?
- Surface tension of water is more than that of ice.
- Density of water is more than ice.
- Mass of ice is more than that of water.
- Density of ice is more than that of water.
- Surface tension of ice is more than that of water.
Evaporation of water changes it from liquid to gaseous state. Evaporation is a ________________ process.
- continuous and slow
- continuous and very fast
- intermittent and slow
- sporadic and fast
- discontinuous and slow
Match column 1 with column 2:
| Column - 1 | Column - 2 |
| 1. Drought | a. Collection of rooftop rainwater for further use |
| 2. Water harvesting | b. A mixture of water vapour, dust particles and air |
| 3. Cloud | c. A situation caused by no rain |
| 4. Hail | d. Pellets of frozen rain which fall in showers from clouds |
- 1 - c, 2 - a, 3 - d, 4 - b
- 1 - c, 2 - a, 3 - b, 4 - d
- 1 - a, 2 - c, 3 - b, 4 - d
- 1 - d, 2 - a, 3 - b, 4 - c
- 1 - c, 2 - b, 3 - a, 4 - d
The temperature at which air becomes saturated and produces liquid is called _________.
- absolute humidity
- relative humidity
- the condensation point
- the dew point
- the saturation point
Match the following:
| a. The process of releasing surplus water into air by plants | 1. Evaporation |
| b. The process of changing water into its vapours | 2. Water cycle |
| c. The process of changing water vapours into water | 3. Transpiration |
| d. The journey of water from oceans to atmosphere and back to oceans | 4. Condensation |
- a - 3, b - 1, c - 2, d - 4
- a - 3, b - 1, c - 4, d - 2
- a - 1, b - 3, c - 4, d - 2
- a - 2, b - 1, c - 4, d - 3
- a - 3, b - 4, c - 1, d - 2