Which question can be answered correctly about how carbon dioxide affects the Earth’s climate by looking at its shape and how it absorbs energy?

Carbon dioxide absorbs infrared energy because its molecular vibrations can change its electric charge distribution, allowing it to interact with infrared radiation. Its bonding and shape help explain those vibrations, so the question about whether infrared absorption is linked to double bonds can be investigated from its shape and energy absorption. The other choices either assume a shape change or ask about molecules or bonding details that do not directly connect the stated evidence to climate.

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