Answer:
1.Carbon is in carbon dioxide, which is a greenhouse gas that works to trap heat close to Earth. It helps Earth hold the energy it receives from the Sun so it doesn’t all escape back into space. If it weren’t for carbon dioxide, Earth’s ocean would be frozen solid.
2.Low concentrations are not harmful. Higher concentrations can affect respiratory function and cause excitation followed by depression of the central nervous system. A high concentration can displace oxygen in the air.
Explanation:
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