The following is a chemical reaction for _______ with ozone. a. chlorofluorocarbons b. halons c. UV radiation d. none of the above Please select the best answer from the choices provided

What organism is the main producer in freshwater ecosystems?a.phytoplanktonb.zooplanktonc.anaerobic bacteriad.none of the above
Using water more efficiently _______.a.protects the environmentb.causes the loss of natural pollution filtersc.increases water contaminationd.all of the above
Continued deforestation will most likely lead to _______. a. a decrease in the number of endangered species b. an increase in the number of endangered species c. an increase in the number of oil and chemical spills d. a decrease in glacial melting Please select the best answer from the choices provided
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