The first great boom in the west was spurred by
a. the railroad.
b. mining.
c. ranching.
d. vigilantes.

Which of the following best describes president harding's goals

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

An underground subway elevator descends 12% of the total depth every minute