Q. No.The primates, Dryopithecus and Ramapithecus, existed around:
1.
15 mya
2.
20 mya
3.
25 mya
4.
30 mya
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| 1. | Western Africa | 2. | Eastern African grasslands |
| 3. | South America | 4. | South East Asia |
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| 1. | Homo habilis | 2. | Homo erectus |
| 3. | Homo ergaster | 4. | Homo neanderthelensis |
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| 1. | Tanzania; 2 | 2. | Java; 1.5 |
| 3. | Ethiopia; 1.5 | 4. | Australia; 2 |
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1. Cranial capacity of around 1400 cc
2. Lived in East and Central Africa
3. Used hides to protect their bodies
4. Buried their dead
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| 1. | Neanderthals lived between 1,50,000 and 1,00,000 years back. |
| 2. | Modern Homo sapiens arose between 75000 and 10000 years ago. |
| 3. | Pre-historic cave art developed around 18000 years ago. |
| 4. | Agriculture came around 10000 years ago |
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| Assertion (A): | When we look at stars on a clear night sky we are, in a way, looking back in time. |
| Reason (R): | When we see objects in our immediate surroundings we see them instantly and hence in the present time. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
| 3. | (A) is true but (R) is false. |
| 4. | (A) is false but (R) is true. |
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| 1. | 20 billion years back | 2. | 10 billion years back |
| 3. | 4.5 billion years back | 4. | 3.0 billion years back |
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| I: | Water vapour, methane, carbon dioxide, and ammonia released from molten mass covered the surface. |
| II: | The UV rays from the sun broke up water into Hydrogen and Oxygen and the lighter H2 escaped. |
| III: | Oxygen combined with ammonia and methane to form water, CO2, and other gases. |
| IV: | As it cooled, the water vapour fell as rain, filling all the depressions and forming oceans. |
1. Only I, II and III are correct
2. Only I, II and IV are correct
3. Only II, III and IV are correct
4. All are correct
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