Question

Define sources of heat with examples Write any four uses of heat energy. Define bio-fuels. Write example.тАЛ

Answer 1

Explanation:

A heat source is anything that can heat up a spacecraft. Heat sources can be external (from outside the spacecraft) or internal (from inside the spacecraft). External heat sources include: the Sun. reflected sunlight from planets and moons

The four uses of heat energy is

Cooking

Drying

Heating

Baking

Biofuel, any fuel that is derived from biomass—that is, plant or algae material or animal waste. ... biofuel is considered to be a source of renewable energy, unlike fossil fuels such as petroleum, coal, and natural gas.