Which of the following is not a primary pollutant?

Smoke from a wild fire caused by lightening

Freon (a CFC) from an old refrigerator

Sulfur dioxide from iron are melting

Large amounts concrete dust from a construction site

Select the word from the list that best fits the definition of branch of islam that is in iran

Solve the equation.8 - 2x = -8х + 14

What is the difference between the cultures of central asia and the caucasus region? the majority of people in central asia are muslim; the majority in the caucasus region are christian. the primary language in central asia is armenian; the primary language in the caucasus region is russian. central asia has been plagued by ethnic unrest; the caucasus region has had little ethnic conflict. the effects of soviet rule can still be seen in central asia; the caucasus region has developed its own identity since the fall of the ussr.