Answers by Aleksandr Petrovskij
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Answers by Aleksandr Petrovskij

Answers by Aleksandr Petrovskij
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Ozone forms near the ground when pollutants from cars are exposed to UV radiation and oxygen. This is an example of a _______. a. primary pollutant b. secondary pollutant c. tertiary pollutant d. none
answered May 12, 2017
6 votes
44.6k views
How is prayer effective in the physical world
answered Feb 8, 2017
4 votes
103k views
How do you turn a ratio into a fraction? and also into a decimal and percent? For example... 28:50.
answered Sep 21, 2016
5 votes
135k views
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