What is an economic system that
features private ownership of property and free
markets

Who did the first work in creating vaccines

What do most climatologists see as a major cause of rising global temperatures? a. earth's closer proximity to the sun due to its gravitational pull b. greenhouse gases produced by burning fossil fuels c. rising ocean levels caused by melting polar ice sheets d. water pollution cause by industrial waste

Discuss the main ideas of eugenics, and explain why it is no longer a prominent belief in the united states.