According to the density gradient model, the MOST densely packed part of the city is closest to the city core
in the first ring
in the second ring
in the third ring
in the suburbs

Ithink it is space that makes up 70 percent

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. 

Nestor foreshadows the plan of the suitors to kill telemachus through his account of what happened to agamemnon who was murdered by people around him. despite this telemachus was reassured that his voyage was going to be safe with the of athena.

Intrusion is the best answer and the newest form.