Heat is the transfer of energy from one object to another due to a difference in temperature. While heat itself is not a physical substance, it is a form of energy that can be measured and observed through its effects on matter.
heat
The sun is essential to life on this planet, so if the sun was not producing light/heat - life on this planet would no longer exist.
Yes, anaerobic exothermic reactions do exist and can produce heat similar to fire. Examples include the anaerobic fermentation of organic matter, which can generate heat in processes like composting. These reactions release energy in the form of heat without requiring oxygen, similar to fire.
They lack enough oxygen to support life. In addition, they either lack sufficient heat, like Pluto (which is not considered a planet anymore) or are simply too hot, like Venus, for life to exist.
The water has already reached the 212 degree boiling point. At 212 degrees the water can exist as either a liquid or a vapor. Absorbing the latent heat pushes liquid to the vapor state without any change in temperature.
friction
Then life would not exist
Then life would not exist
Most of it is converted into heat energy, that is ... it ceases to exist.
Fpr heat and beauty
It is not possible to answer the question because it is based on a false premise that I do not have any heat. If I had no heat then I would not exist.
We're modestly familiar with the source of heat and light. And we know that heat and light both exist and are real. Cold and darkness do not exist. They merely describe the lack of heat and light, respectively.
No
Cold is a relative state. It does exist, however and can be quantified and measured.
heat
Life on earth would cease to exist.
No. The heat would be too great for anything to exist on a massive ball of super-hot plasma.