Which statements about characteristics of the Maya's civilization are correct? Choose all answers that are correct.

built irrigation canals to water crops in arid land

understood the idea of zero as a number

built a major city with stone pyramids at Tikal on the Yucatan Peninsula

wrote epic poems and drama

understood the idea of zero as a number

Explanation:

the Mayans developed zero as a placeholder around A.D. 350 and used it to denote a placeholder in their elaborate calendar systems. Despite being highly skilled mathematicians, the Mayans never used zero in equations

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explanation:

sonar maybe? ? i dont know the choices