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. The construction of canals and tunnels to transport water out of the valley also has supported land reclamation. The construction of Chinampas, artificial islands to grow food and hillside terraces for water storage and agriculture, is an additional innovative technique that has created more productive land that allows for human survival.
The crusades strengthened the power of the. serfs in europe increased european isolation
Answer:
Poor Europeans fared a little better, often signing on to be indentured servants. This was like slavery, but it was for a specified amount of time and came with a specified bonus paid at the end. Still, injustices such as press ganging were slow to die.
Explanation:
Because the navy and army help protect the country so without them america would be attacked
They trade so muh stuff and end up with nothing to profit from
