People, computers and light bulbs.
body heat, furnace, love
heat
Sunlight, fire, and pee
the first sources of heat was asteroids and meteorites. another sources of heat for the early earth was the contraction of gravity. the third sources of energy for the early earth was radioactivity. hope this helped :)
sun,stars and fireflies.
Machines, Radioactivity Electricity
water bill heat bill and light bill
What are three types of heat tranfers in a building
what are the four sources of heat
Main sources of internal heat are Magmatism and Radioactivity.
All heat sources. Plus extreme cold sources cause burns.
no