An animal burrows through a rock, causing it to break. this is an example of
erosion
mass wasting
animal weathering
biological weathering

Biological Weathering. Biological weathering is caused by the growth of roots and burrowing of animals. 

Ibelieve this is true m8

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.