If two distinct planes intersect, then their intersections is a line. Which geometry term does the statement represent. A:defined term
B:postulate
C:theorem
D:undefined term

What is the

Ibelieve that a would be the best answer.

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. 

Physical systems is the answer