Q. In 2004, most frequent natural disasters experienced by USA were:

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Q. Which elements in atmosphere alter balance ?

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Q. Deforestation and increase concentration of GHGs affects the

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Q. Global warming is changing earths temperature, which in return causes

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Q. As global temperature increases, it would also give rise to

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Q. What is essential to plants growth?

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Q. What is involved in CO₂ and CH₄ inclusion ?

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Q. What is oceans warming depth?

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Q. Plants use water more efficiently, when exposed to higher level of

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Q. Earth's temperate is affected by:

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Q. What causes rapid melting of glaciers ?

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Q. Its has been predicted by scientists that most species threatened by

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Q. How much did sea level rise in 20th century ?

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Q. What maintains surface temperature of earth?

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Q. Scientists predicted, ecosystem would adversely affected by the

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Q. Earth is tilted, approximately

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Q. One third of sunlight striking earth and its atmosphere is reflected back to the

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Q. What can humanitarian be harmed by unmitigated greenhouse emissions ?

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Q. Human activities' are playing main role in causing

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Q. Trees in tropical region grows slower when exposed to

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