Most of earth's atmosphere is composed of which of the following two gases?

nitrogen and carbon dioxide

carbon dioxide and oxygen

nitrogen and oxygen

methane and argon

What is the reason behind the acceptance of Darwin's theory

Why did the Irish immigrate to the US?

The swedish became the first colonizers of pennsylvania. a. true b. false

Which of the three branches of government interpret the Constitution?

Which of the following animals transformed American Indians' hunting practices during the Columbian Exchange

Which statement best describes the Aztecs?

What did John Kennedy command during war world 2

By 1850, what was the most common way to move freight?

Jim Crow laws, a set of racist and discriminatory rules and regulations against African Americans, were enacted A.) in the South starting in the mid - to late 1800s. B.) in the South starting in the early 1800s C.

Why did Rockefeller build his business