on light, heat and sound

Waht are primary coulars of light

What is spectram what are the colours

What determins a colour
Name one good conductor of heat and one good insulatore???
thanks if you help me send answer soon thanks a million

is a good place to start.

Good conductor of heat: copper
Poor conductor of heat: Glass

Leslie Hetrick strips off all of her clothes just to do naughty things in the shower with Grayson Sims.

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