How can a nation’s government invest in human capital?
1.by providing affordable medical care
2.by building roads and bridges
3.by making education free
4.by reducing taxes on domestic trade
5.by facilitating vocational training

Who ever answer first get ! question 1 : which pair of words names two processes for treating water to make it clean? a. aeration, precipitation b. coagulation, refurbishing c. filtration, coagulation d. combustion, aeration question 2: which act did the u.s congress pass in 1972 to protect th nation's water? a. anti-pollution act b. watershed protection act c. clean water act d. nixon act