Which of the following achievements BEST illustrates Maya knowledge of astronomy? Group of answer choices

They developed a hieroglyphic writing system.

They developed a complex calendar system.

They used slash-and-burn agriculture.

They built temples and pyramids. Why did Olmec farmers move their farms from time to time?

They built temples and pyramids , the main reason for this is that the soil would wear out and could no longer support farming. If soil begins to wear out the plants will never grow or die out before reaching full maturity. ... Their solution to this was moving to locations were the soil could better support their crops and provide larger harvests.

Explanation: Hopefully this is correct , Good luck!