Why was millet a sutible grain for planting in central africa?

According ti the following map, what are the most common mineral resources found in the united states?

What is unusual about the iraq mountains ,in spite of their old age?

What conclusion can be drawn about the location of the city of syracuse? it was built on the coastline due to easy access to the red sea. it was built on the coastline due to easy access to the mediterranean sea. it was built inland to protect it from invaders sailing in from the mediterranean sea. it was built inland to protect it from invaders sailing in from the red sea.