Answer:
There are still a lot of places on the Earth undiscovered.
Explanation:
Like the oceans. And more of the unknown places. I can't think of them right now.
The Mayans, among other older Mexican tribes, were infamous for pyramids, rivaling the Egyptians. Definitely D.
Answer:
He was the commander of the Continental Army.
The correct opinion is a lack of a diversity of opinions.
The greatest downside to media conglomerates is that the conglomerates view often becomes the view of all of the sub media entities.
The end result is that consumers are really only getting the world view of a few executives from a small group of conglomerates.