1. Where are the largest number of highest peaks located?

    Himalayan - Karakoram range

    Alps

    Rocky mountains

    Grand Canyon

2. Which period in the history of earth are we all living in?

    Cretaceous

    Carbonniferous

    Silurian

    Quaternary

3. What is the thickness of the earth's crust?

    About 20 km

    About 30 km

    About 40 km

    About 50 km

4. Which radioactive gas is released when an earthquake is about to occur?

    Helium

    Neon

    Radon

    Xenon

5. Which is the biggest mountain range in this world?

    Himalayan - Karakoram

    Vindhiyas

    Tibetan plateau

    Montana

6. How much of the land surface of the earth is arid or semi-arid?

    One fifteenth

    One tenth

    One fifth

    One third

7. How many types of mountains are there on the earth?

    Four

    Six

    Five

    Seven

8. What rock is formed because of the effect of heat and pressure on clay?

    Granite

    Slate

    Basalt

    Limestone

9. What is "Burgess Shale"?

    Oldest rock on the earth

    Richest fossil site

    Biggest oil deposit

    Largest mineral deposit

10. Where are the oldest rocks on the earth found?

    India

    China

    Canada

    Africa

11. What is the temperature at the centre of the earth?

    3500°c

    4500°c

    5500°c

    7500°c

12. How many volcanoes are active on the earth today?

    About 200

    About 500

    About 800

    About 1000

13. What percentage of the earth's surface is covered by ice at present?

    2%

    6%

    10%

    20%

14. What is the size of the earth?

    12,713 km

    12,756 km

    12,826 km

    12,869 km

15. What phenomenon on the earth is responsible for the creation of our atmosphere?

    Earthquakes

    Volcanoes

    Lightnings

    Photosynthesis