Oxygen #008

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Quiz on Oxygen

1 / 5

The color of liquid and solid oxygen is

2 / 5

Which process uses oxygen when things rust?

3 / 5

Excited oxygen is responsible for the bright red and yellow-green colors of the aurora (polar lights)

4 / 5

Oxygen is the _________ most abundant element in the universe

5 / 5

Tiny plants live near the surface of the ocean and produce lots of oxygen, what are those?

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