PASS YOUR MOUSE OVER THE QUESTION MARKS (???) FOR THE ANSWER TO EACH QUESTION! ANSWER WINDOW WILL OPEN. JUST CLICK OK TO MAKE THE ANSWER GO AWAY AND GO ON TO THE NEXT QUESTION!

1. Man first cultivated crops in the ...... age ?

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2. Sheep were initially domesticated for?

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3. Barrier reefs are formed when certain organisms secrete?

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4. Photosynthesis in plants is facilitated due to the presence of?

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5. Rossby Waves are related to?

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6. The industrial chemical which increases the chance of developing Leukemia is?

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7. The Royal Society for the Protection of Birds was formed in?

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8. Campaign for Nuclear Disarmament started in?

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9. 'Man and the Biosphere' an ecological programme was launched by?

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10.Chemicals which get rid of pests are known as ?

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11.The living beings which are known as tertiary consumers are?

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12.A motor car produces least amount of pollution while?

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13.The first living beings who established themselves on rocky slopes were?

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14.Birds evolved on earth during the?

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15.  15.Water covers about ........ percent of the earth's surface.

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16.Joseph Black was a?

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17. The vapour given off by fermenting fruits is?

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18.Burning needs air (Oxygen), this was proved by?

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19.Mayow concluded that for burning and breathing to be effective, air contained a substance called?

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20.As per Johann Becher, terra pinguis meant?

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