contestada

"Which phrase describes a human activity that could have a negative effect on this cycle?
(1)a decrease in the amount of sulfates given off by motor vehicles
(2)an increase in recycling programs for plastics and metals
(3)the continued deforestation and removal of forest resources
(4)development of programs to conserve wildlife"

Which phrase describes a human activity that could have a negative effect on this cycle 1a decrease in the amount of sulfates given off by motor vehicles 2an in class=