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dybincka [34]
3 years ago
7

Please help its 6th grade science

Biology
1 answer:
notsponge [240]3 years ago
4 0

Answer:

CAR C

Explanation:

I think

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Use of fossil fuels has increased the total amount of carbon in the carbon cycle.
nika2105 [10]

The correct answer is option a. true.

The fossil fuels, including coal and oil are present very deep inside the earth. In the carbon cycle, only fixation of atmospheric carbon dioxide in the organic material takes place. This cycle does not involve the recycling of the fossil fuels.

The burning of the fossil fuels directly release carbon dioxide and other carbon compound in the atmosphere, which was not involved in the cycle when it was present deep beneath the earth and ocean. Hence, the burning of fossil fuels increases the amount of carbon in the carbon cycle.

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Veseljchak [2.6K]

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Answer:

The correct answer will be- the color change will be observed and the solution will turn purplish-black.

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In the given question, if we add the iodine solution to the beaker after a certain point of time then it will still form a complex with the starch and thus beaker solution will appear darker in color.

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