01. |
A ring shaped reef made mostly in cost are ? |
02. |
A sudden fall in barometer reading indicates that ? |
03. |
During which geological period did the earth become oxygen rich ? |
04. |
Stone Age cultures appeared during which period ? |
05. |
The first green plant and fungi appeared on land during the period of ? |
06. |
The layer between Crust and the Core is known as ? |
07. |
The most abundant element in the earth’s crust ? |
08. |
The region drained by a stream or a river is called ? |
09. |
The surface of the earth is ? |
10. |
The top of the Crust which includes the land surface and ocean floor ? |
11. |
The total quantity of living matter in an eco-system in called ? |
12. |
Weather forming process mostly occur in which atmosphere layer ? |
13. |
Which atmospheric layer provides ideal conditions for flying aero plane ? |
14. |
Which is the outer portion of the earth including the crust and upper mantle ? |
15. |
Which mountain range separates Asia from Europe ? |
Answer
| 01. | Atoll | 09. | Oblate Spheroid |
| 02. | Very Stormy whether | 10. | Lithosphere |
| 03. | Orosirian Period | 11. | Biomass |
| 04. | Pleistocene | 12. | Troposphere |
| 05. | Ordovician period | 13. | Stratosphere |
| 06. | Mantle | 14. | Lithosphere |
| 07. | Oxygen | 15. | Ural Mountain |
| 08. | Water Shed |
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