Yes the sun is a source of heat.
the sun is our source of heat
The main source of energy and heat is the sun.
sun is the primary source of heat and light......
Yes, the sun is the origin of heat and light in our biosphere.
the sun?
Sun
The Sun
Mercury does not have its own heat source. It receives heat from the Sun or its surroundings and does not generate heat internally.
the external heat is the sun
The sun is the source of heat and light for plant-life.
The main source of heat is the Sun.
The Sun.