What's a ventifact? A. The side of a sand dune protected from wind
B. A wind-borne deposit of sand
C. A rock formation shaped naturally by wind
D. A wind-borne deposit of nutrient-rich soil

In 1 or 2 sentences, define nationalism and give an example.

On nights when we see the new moon phase, what side of the moon are we seeing?

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