Question

civilization that developed astrological calendars, grew crops on chinampas, and built pyramids in the jungle.

Explanation:

The civilization described here is the Aztec (or Mesoamerican) civilization. They developed astrological calendars, used chinampas (floating gardens) for agriculture, and built pyramids in jungle - like regions (such as in Mesoamerica).

Answer:

Aztec (or Mesoamerican) Civilization