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
The answer is c I hope this helps
Answer: Aztec calendar stone
Explanation: Aztec calendar stone; in the National Museum of Anthropology, Mexico City. The calendar, discovered in 1790, is a basaltic monolith. It weighs approximately 25 tons and is about 12 feet (3.7 metres) in diameter.