why is it commonly believed that carbon dioxide is responsible for global warming?\ncarbon dioxide levels in…

why is it commonly believed that carbon dioxide is responsible for global warming?\ncarbon dioxide levels in the earth’s atmosphere have been steadily decreasing.\ncarbon dioxide has a longer average lifetime in the atmosphere.\nthe warming effect associated with carbon dioxide has remained unchanged.\nother greenhouse gases amplify the effect of carbon dioxide.

why is it commonly believed that carbon dioxide is responsible for global warming?\ncarbon dioxide levels in the earth’s atmosphere have been steadily decreasing.\ncarbon dioxide has a longer average lifetime in the atmosphere.\nthe warming effect associated with carbon dioxide has remained unchanged.\nother greenhouse gases amplify the effect of carbon dioxide.

Answer

Brief Explanations:

Carbon - dioxide is a major greenhouse gas. It has a long - average lifetime in the atmosphere, allowing it to trap heat for an extended period and contribute to global warming. Other greenhouse gases can also enhance its warming effect. The first option is incorrect as CO₂ levels are increasing, not decreasing. The third option is wrong because the warming effect can change with increasing concentrations.

Answer:

B. Carbon dioxide has a longer average lifetime in the atmosphere; D. Other greenhouse gases amplify the effect of carbon dioxide.