Scientist believe that earth's core is around 6,000 degrees celcius. where does this heat come from?

What is an example of a line segment

Mexico city is an example of how humans alter their environment because it was a. one of the world’s largest cities b. built on drained and filled lake beds c. built after conquest by the spanish d. once the capital of the aztec empire

Hurry! according to the map above, there are major types of natural resources in india. a. 4 b.5 c.10 d.16