Answer:
1. They all practiced extensive farming to support their empires and civilization
2. They all worshipped many gods
Step-by-step explanation:
The Olmec, Mayans, Incas, and the Aztecs are similar to each other in many ways, some of which are:
1. They all practiced extensive farming to support their empires and civilization: by planting various food crops, these empires were able to have adequate food supply to support their empires
2. They all worshipped many gods: these empires practiced religions by worshipping different gods. They believed their gods control farming produce and weather such as rain and sun (gods). They offer sacrifice to these gods as well.