Rain: where does it come from - class-VII
rain: where does it come from
Questions
The freshwater stored in the ground is much more than that present in the rivers and lakes of the world.
- True
- False
The process by which water from the surface of the earth moves to the atmosphere is:
- cooling.
- distillation.
- evaporation.
- None of the above.
95% of the Earths water is stored in its:
- glaciers
- oceans
- rivers
- ponds
In water cycle, the maximum vaporization takes place:
- from oceans
- from rivers
- from streams
- from plants
Which of the following is not naturally occurring form of water?
- Solid
- Liquid
- Vapour
- Semi-solid
Water is an extremely stable ____________.
- atom
- element
- mixture
- compound
Water produces hydrogen and oxygen in the ratio of :
- 1:1
- 2:1
- 1:2
- 2:3
Rainfall patterns depend on
- The underground water table
- The number of water bodies in an area
- The density pattern of human population in an area
- The prevailing season in an area.
More than 70% of world's fresh water is contained in
- Antarctica
- Polar ice
- Glaciers and Mountains
- Greenland
Water heats up ___________ and cools off ___________ than land.
- More quickly, more quickly
- More quickly, more slowly
- More slowly, more quickly
- More slowly, more slowly
What affected salamanders?
- Acidity
- Pollutions
- Air pollution
- Water Pollutions
How much did sea level rise in 20th century?
- 1.3 mm/yr
- 1.8?mm/yr
- 1.7 mm/yr
- 1.9 mm/yr
Water vapor is present in air only during the monsoon.
- True
- False
The solid form of water is known as:
- fog
- dry ice
- ice
- snow
Evaporation is defined as:
- conversion of ice in water.
- conversion of water into water vapours.
- conversion of water vapours into the water.
- freezing of water into ice.
Which of the following is the most important factor in balancing the amount of freshwater on earth?
- Water cycle
- Greenhouse effect
- Waste water treatment plant
- Transpiration
When water circulates through the water cycle it can be found in all the _________ form, at any given time somewhere on the earth.
- four
- two
- three
- six
The circulation of water from surface of the earth to atmosphere and back to the surface is known as:
- water circle.
- water cycle.
- water round.
- None of the above.
During water cycle, the water is circulated back from the earth in the form of:
- humidity.
- rain.
- vapour.
- None of the above.