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41. The diagram given below shows the greenhouse effect. Which of the following would happen in the absence of greenhouse effect in the atmosphere? (NTSE Stage-II, 2009-10)
Which of the following would happen in the absence of greenhouse effect in the atmosphere? (NTSE Stage-II, 2009-10)
Pollution will increase
Earth's surface temperature will decrease
Earth's surface temperature will increase
The ozone layer will increase earth's temperature
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42. Four pupils were asked to state what they knew about decomposers. Their answers are shown in the given box. (NTSE Stage-II, 2013-14) Who are correct?
Who are correct?
Only Esha and Jane
Only Abhi and Esha
Only Esha and John
Only Abhi, Jane and John
43. Which of the following is a result of biological magnification? (NTSE Stage-II, 2015-16)
Top level predators may be most harmed by toxic chemicals in environment
Increase in carbon dioxide
The greenhouse effect will be most significant at the poles
Energy is lost at each tropic level of a food chain
44. What is the main reason for increase in temperature in a glass house? (NTSE Stage-II, 2015-16)
Sunlight is completely absorbed by plants in the glass house
Radiation fails to escape from the glass house completely
Plants do not utilize sunlight in a glass house
Plants produce heat inside the glass house
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