Edwin hubble was the first to suggest that the universe is expanding. we can verify his theory by observing the
of distant stars and galaxies.

Compare how one's social status affect his or her opportunities in ancient greece and rome?

What is the name for the main idea behind the settling of western lands by americans in the early-1800s?

Which of the following associations is incorrect? a. franklin d. roosevelt-social security b.theodore roosevelt- conservation of natural resources c. franklin d. roosevelt- the panama canal d.theodore roosevelt-the russo-japanese war