Q. A Brief History of Time, was writing by

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Q. Daisy world is an imaginary planet spinning on its

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Q. Who suggested a simple model of an imaginary world called Daisyworld?

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Q. Carbon dioxide can be pumped into spent oil, gas wells and into

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Q. Sources of carbondioxide are from fossil fuels and:

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Q. In Norway, as per company rule, estimated carbon tax is

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Q. What are two main processes which occur in natural carbon cycle?

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Q. Concentration of Carbon dioxide has increased from

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Q. Which isotope of carbon is very rare and radioactive?

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Q. Planktons live on surface of:

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Q. Size of 'plankton' is:

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Q. Respiration process is a respiratory system of exchanging oxygen and:

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Q. As sunlight increases in spring, an explosive growth of plankton ocurrs, which is known as

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Q. Where does a peak biological activity occur in spring?

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Q. Small animals in ocean are known as:

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Q. Each year, carbon dioxide is increasing approximately:

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Q. Small plants in ocean are known as:

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Q. Land and ocean reservoirs, much larger than amount in the

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Q. About 90% of fossil fuel burning occurs in the

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Q. During winter, nutrient-rich water is transferred from deep water to the

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