Answer:
Gunpowder, paper, printing, and the compass are sometimes called the Four Great Inventions of Ancient China. Kites were first used as a way for the army to signal warnings. Umbrellas were invented for protection from the sun as well as the rain. ... They invented the abacus in the 2nd century BC.
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Virtually anything that has a temperature gives off radiant energy. Some examples of radiant energy include:
The heat emitted from a campfire
Emission of heat from a hot sidewalk
X-rays give off radiant energy
Microwaves utilize radiant energy
Space heaters produce radiant energy
Heat created by the body can be radiant energy
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Answer:
The nervous system controls movement and balance, the five senses (sight, hearing, taste, smell, and touch), your thought processes, and how awake and aware you are. It includes the brain, the spinal cord, and all the nerves in the body.
Explanation:
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