Yes, but apart from the Sun, the stars are too far away for their heat to affect Earth.
Planets do not technically need their respective stars, but stars keep planets in orbit and provide heat and light to the planets.
Stars, light, heat
stars, the planets have to get heat from stars
No. Stars are made primarily of hydrogen and helium. They produce enormous amounts of heat but are not made of heat.
yes
Like the Sun, all the stars are radiating heat all the time. They lose the heat (or thermal energy) through radiation.
The heat and the light in stars is the same thermal nuclear fission that our Sun (a star) produces.
They provide navigation aids at night. The stars are beautiful to look at and provide inspiration for the arts.
Electricity
Small stars are realtively smaller and in heat too.
stars give off heat and or sum othewr stuff
We have stars because the main star is the sun and there is other stars in space that are luminous globes of heat.