Question

2 possible reasons why the amount of carbon dioxide in the air can change. For 4th standard​

Answer 1

Explanation:

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Answer 2

Answer:

Carbon dioxide levels today are higher than at any point in at least the past 800,000 years. Global atmospheric carbon dioxide concentrations (CO2) in parts per million (ppm) for the past 800,000 years. ... Carbon dioxide concentrations are rising mostly because of the fossil fuels that people are burning for energy.