A material you are testing conducts electricity but cannot be pulled into wires. It is most likely a metalloid. Hope this helps!
The intensity of a sound wave is defined as the amount of energy passing through a unit area of the wave front in unit of time.
I want to say its cooled by reflection because of the foil, sun reflects off of the foil back into the atmosphere. I don't think it's conduction because I have the foil on my windows and it's never warm to the touch. it's not a liquid so I don't believe it's convection. The foil reflects the radiation so I don't think it's b, c or d. so I wanna say A but I'm not 100% sure