Exercise
1. What is fish farming?​

Aquaculture or fish farming is the raising of fish and shellfish on special farms. Aquaculture can take place in the open ocean, in bays, in ponds, in greenhouses, and even in buildings. They raised a fish called a common carp because it was good to eat.

I'm hella smart but i dont know that

Humans have survived and thrived in mexico city by using technology to create greater access to land. when the spanish conquered the aztec capital, tenochtitlan, in the 16th century, they built mexico city by draining the lakes and filling in the lake water to create more arable land for agriculture. this technique of land reclamation has continued to be fundamental to human civilization in mexico city.