What do we call the layer of gas that blocks the Sun's harmful rays?

Ozone (O3) is a gas molecule composed of three oxygen atoms.

19 of 24 people (79.17%) answered this question correctly.

0 of 65 questions completed

Dashboard

Your Coins: 0

World Coin Count: 6870

Product	Value	Cost
Life	Buy lives to help pass the quiz.	1 x 50 Coins