What two important inventions did the people from this region share with society?

What was the most important consequence of the large-scale ecological changes in africa two hundred thousand years ago?

How did the environments in north america affect the development of america indian cultures in the period just before europeans arrived

Which of these is not a purpose of the constitution as explained in the preamble? • to make a better country • to keep states more powerful the the u.s. • to keep peace in the country • to protect freedom