The diagram shows a cross- of a thermos. The vacuum between the outer and inner bottles is a space containing no air or other matter. Which statement best describes the purpose of the vacuum inside a thermos? A: It prevents heat loss through radiation, which requires matter to transfer energy.
B: It prevents particles from transferring thermal energy between the outer and inner bottles.
C: It increases heat loss through conduction between the outer and inner bottles.
D: It allows for more collision between the outer and inner bottles.

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