What does earth s systems interact through

Based on what you know about the location of the earth in relation to the sun, why is this called the goldilocks zone in other galaxies?

What evidence does the writer give to support his argument about coral reefs? a) he speaks of the activities of coral polyps. b) he describes the composition of the great barrier reef. c) he emphasizes the ways in which coral reefs are fragile. d) he points out the ways that scientists do research on the reefs.

Can someone me? i need to have this done as soon as possible! i'm putting 20 points on this!