Which steps did carnegie take to try to improve society, check all the answers that are correct

a. he gave money to collages and schools

b. he pasted law preventing child labor

c. he closed down business that polluted

d. he built libraries across the country

Which of the following lists correctly orders the earth's layers from its innermost layer to its outermost layer? a. mantle, inner core, outer core, crust b. crust, inner core, outer core, mantle c. crust, mantle, outer core, inner core d. inner core, outer core, mantle, crust