Select all the correct answers. What two effects did the development of vaccines have on society?
controlled infection-causing bacteria
helped control death due to smallpox
became the basis for future research
reduced the deaths of soldiers during wars
reduced the cost of medicines

Which statements describe how reformers fought for social change in the progressive era? check all that apply. 1. they founded a state university to promote industrialization. 2. they began a civil rights movement to promote equality between races. 3. they made it legal to manufacture and sell alcohol. 4. they built thousands of new schools and required attendance. 5. they promoted abstinence from alcohol and supported prohibition.