The main idea of sustainability is to act responsibly so that the resources on the planet will be able to many generations to come.
A. feed
B. support
C. wipe out
D. clothe

If we represent the solar system on a scale that allows us to walk from the sun to pluto in a few minutes, then a) the planets are microscopic and the stars are millions of miles away. b) the planets are the size of basketballs and the nearest stars are a few miles away. c) the planets are marble size or smaller and the nearest stars are thousands of miles away.

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

Why isn't the balkan region good for farming? it has dry summers. it is far from the sea. its soil is not fertile. its terrain is mountainous. its winters are mild.