Moon is a natural satellite of the earth. In how many weeks it completes one orbit around the earth ?
Why does a green object look green ?
Because green object absorbs no colour.
Because green object absorbs all the colours except green. Green colour is reflected. Therefore, the object looks green.
Because green object absorbs only the green light and rejects all other colours.
Because of none of these.
Why are cloudy nights warmer ?
Because clouds do not allow radiation of heat from earth. Thus, only very less heat escapes into the atmosphere.
Because clouds emit heat radiations.
Because cool light of the moon is obstructed by the clouds.
None of these.
Why is fire extinguished by soda bicarbonate ?
Because soda bicarbonate absorbs all the oxygen of the air surrounding the fire.
Because soda bicarbonate has a cooling effect.
Because soda bicarbonate decomposes to give out carbon dioxide.
Because soda bicarbonate isolates the fire from the sorrounding air.
Which planet is closest to the earth ?
Why is a flash of lightning seen before the sound of thunder ?
Because light travels faster than sound.
Because our eyes are more sensitive than our ears.
Because of both these reasons.
Because sound has to cross more obstacles than light.
The outer covering of the flower is called
none of these.
Why rain water is soft but river water is hard ?
Because rain water is free from chemical impufities and river water contains carbonates and chlorides of magnesium and calcium.
Because rain water contains carbonates and chlorides of magnesium and calcium while the river water is freeftom all chemical impurities.
Because rain water contains carbonates of magnesium while the river water contains chlorides of calcium.
Because rain water contains chlorides of magnesium while the river water contains sulphates of calcium.
What is the name given to the state of atmosphere day by day [and week by week ?
Which planet is nearest to the sun ?
1. World Geography -Test-01
2. World Geography -Test-02
3. World Geography -Test-03
4. Geography of India -Test-01
5. Geography of India -Test-02
6. Geography of India -Test-03
7. Geography of India -Test-04
8. Geography of India -Test-05
9. History of India - Test - 01
10. History of India - Test - 02
11. History of India - Test - 03
12. History of India - Test - 04
13. History of India - Test - 05
14. History of India - Test - 06
15. History of India - Test - 07
Prime Minister of india - Duration Quiz
Best Street Artists In The World
Cure for Obesity
Forever Young Naturally Lifestyle
Valentines Day Ideas for Couples
Creative Cleaning Hacks
Simple Sponge Sanitzer
You can also run it through your dishwasher s sanitize cycle.