how many moles of aluminim are needed to react completely with 3.2 moles of iron(II) oxide to form solid iron and aluminun oxide?

It will appear as o2(g) as a reactant 

The correct answer is:   [a]:   the "stratosphere" .

Large asteroid and comet impacts. because they can have a huge impact on the environment, such as a loss of land, and crust on the earth with the big holes they produce. on the other hand, volcanic eruptions can also cause change within the environment by producing land, but im actually not quite sure which one would be a better answer, hopefully you read this and didnt just flat out choose the first sentence i have spoken! your welcome~