This encouraged trade and the creation of goods by producers as well as german nationalism.
a. the zollerein
b. the duma
c. failed reforms

B.a pop up at ion changes in response to a change in the environment.

Cause of he different elevations  hope this ?

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.