Biology, 10.07.2019 14:30 rosemary909
Sewage treatment is the process of removing contaminants from wastewater and household sewage. it includes physical, chemical, and biological processes to remove physical, chemical and biological contaminants. identify the positive effects of sewage treatment on the environment? a) to provide jobs in america b) protection to the public health from the spread of diseases c) to preserve the natural environment by controlling water pollution d) to preserve the natural environment by controlling water pollution and protection to the public health from the spread of diseases
Answers: 1
Biology, 21.06.2019 23:20
Ascientist wants to determine the effect of a new type of gasoline. he fillsone car with normal gasoline and another identical car with the new gasoline.which is the control group? a. the new type of gasolineb. the car with the normal gasolinec. the car with the new gasolinethe amount of gasoline usedd. the amount of gasoline used
Answers: 1
Biology, 22.06.2019 10:00
Which of the following human activities resulted in the growth of the north american deer population?
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Biology, 22.06.2019 12:00
The earth's oceans are made up of chlorine, and trace elements. a) carbon, oxygen b) oxygen, silicon c) hydrogen, oxygen d) nitrogen, oxygen
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Sewage treatment is the process of removing contaminants from wastewater and household sewage. it in...
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