Question 1 What is Ganga Action Plan? When and why was it launched? Question 2 Name the pollutants which cause water pollution? Question 3 What is water pollution? Question 4 State few ways of controlling water pollution? Question 5 How do industries cause water pollution? Question 6 Why even clear, transparent and odourless water may not be safe for … [Read more...] about Water Pollution
Class 8
Acid Rain and Green house effect
Question 1 What is green house effect? State its importance for us? Question 2 Name few greenhouse gases? Question 3 What depletes the ozone layer in the atmosphere? Question 4 What are the harmful effects of the depletion of ozone layer? Question 5 Describe the threat to Taj Mahal monument due to air pollution? Question 6 What is acid rain? How is acid rain … [Read more...] about Acid Rain and Green house effect
Air Pollution
Question 1 What is air pollution? What are the main sources of air pollution? Question 2 What is smog? How is smog formed? What are the harmful effects? Question 3 Name the various constituents of air? Question 4 How can you reduce air pollution at individual level? Question 5 Name few sources and harmful effects of Sulphur dioxide? Question 6 Name few sources … [Read more...] about Air Pollution
Asteroids, Comets and Meteoroids
Question 1 What are asteroids? Where are they located? Question 2 What is a comet? Question 3 When does a comet become visible to us? Question 4 What happens to the tail of comet when it moves far away from the Sun? Question 5 What is a meteor? Question 6 What is the difference between a star and a shooting star? Question 7 What are meteorites? Asteroids A … [Read more...] about Asteroids, Comets and Meteoroids
Satellites and Artificial Satellite
Question 1 What is meant by the phases of the Moon? What causes the phases of the moon? Question 2 What is the difference between full moon and a new moon? Question 3 What is a satellite? Name the natural satellite of the Earth? Question 4 Moon does not have light of its own? How are we able to see the moon? Question 5 State two differences between artificial and … [Read more...] about Satellites and Artificial Satellite