Over thousands of years, the evolution of plant and animal species into forms that are of more use to humans. A. domestication
B. evolutionary planning
c. planned mutation
or none of the above

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