This gas is formed when nitrogen oxides react with a group of air pollutants known as reactive organic substances in the presence of sunlight. It's presence in the stratosphere is protective but can be

This gas is formed when nitrogen oxides react with a group of air pollutants known as reactive organic substances in the presence of sunlight. It's presence in the stratosphere is protective but can be toxic in the troposphere.

Question 1 options:

carbon dioxide

nitrogen

ozone

hydrogen

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This gas is formed when nitrogen oxides react with a group of air pollutants known as reactive organic substances in the presence of sunlight. It's presence in the stratosp…

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