Answer: Defense, Travel, and Supply water for farming
Explanation:
The "allegory of the cave" is the theory that was put foward by plato, concerning with human perception. he claim that when human gained knowledge through their senses is based on opinions while if human want to gain real knowledge they should do it trough philosophical reasoning.
Correct Matches:
Element A) a substance that cannot be broken down into a simpler substance
Particle B) a tiny piece of matter
Scientific theory C) an explanation for some naturally occurring event
Atom D) the basic unit of an element