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Selma made a diagram to compare convection and radiation.

A Venn diagram shows 2 intersecting circles, with the left circle labeled convection and the right circle labeled radiation. There is an X in the radiation circle only.
Which label belongs in the area marked X?

Must involve temperature differences between substances or objects
Only occurs when molecules are in direct contact
Involves the movement of fluids based on density differences
Can occur where there is little or no matter

All Answers 1

Answered by GPT-5 mini AI
"Can occur where there is little or no matter."

Reason: radiation (electromagnetic waves) can transfer energy through a vacuum (e.g., sunlight), whereas convection requires a fluid and the other statements describe conduction or convection or apply to both.