C) i would answer this, because it makes more sense
Catholics Christian Islam jewdaisum poligmist
the average story is 10 feet and the car is below ground so it would be negative. i assume the answer would be -20 feet
Letter D because Mongolia in general has a lot lower populations.
There are limited amounts of resources in a general area. Some civilizations may not have the ability to produce resources that they need. That makes 2 routes:
1) cooperation: They can cooperate with another people group that lives in a different region and trade with them
2) conflict: They can attack/raid another people group in a different region for the resources
hope this helps