Which method of heat transfer does not require direct contact with the heat source?

Radiation

Explanation:

Radiation is a method of heat transfer that does not rely upon any contact between the heat source and the heated object as is the case with conduction and convection. Heat can be transmitted through empty space by thermal radiation often called infrared radiation. This is a type electromagnetic radiation.

hope this helps you :)

true

explanation:

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6