HEL PLEASE Who is a political revolutionary that has made changes during the 21st century, and why?

Explain the difference between a physical change and chemical change

Which describes a contribution from classical rome to modern western civilization? a. international gathering to celebrate sporting achievement b. written constitution based on natural rights c. large infrastructure projects to benefit the public d. direct election of the ruler by all residents of the empire

Why do you think jefferson thought lewis was qualified to explore the louisiana purchase? ?