A thermos is often used to keep hot chocolate or coffee from getting cold. Why is a thermos good for this purpose?
A. A thermos is made from highly conductive materials that keep liquids hot.
B. A thermos uses insulators to keep heat from escaping into the environment.
C. Heat energy is transferred from the cool thermos to the warm liquid through conduction.
D. Radiation from the sun can pass through the thermos and warm the liquid inside

Question

A thermos is often used to keep hot chocolate or coffee from getting cold. Why is a thermos good for this purpose?
	A.	A thermos is made from highly conductive materials that keep liquids hot.
	B.	A thermos uses insulators to keep heat from escaping into the environment.
	C.	Heat energy is transferred from the cool thermos to the warm liquid through conduction.
	D.	Radiation from the sun can pass through the thermos and warm the liquid inside