Common Gases:

* Nitrogen (N₂) : Makes up about 78% of the Earth's atmosphere.

* Oxygen (O₂) : Essential for respiration and combustion.

* Carbon Dioxide (CO₂) : A greenhouse gas produced by respiration and burning of fossil fuels.

* Argon (Ar) : The most abundant noble gas in the atmosphere.

* Helium (He) : A light, inert gas used in balloons and other applications.

* Neon (Ne) : A noble gas used in signage and lasers.

Other Gases:

* Hydrogen (H₂) : The lightest element, highly flammable.

* Methane (CH₄) : A flammable gas, a key component of natural gas.

* Carbon Monoxide (CO) : A colorless, odorless, and poisonous gas.

* Nitrous Oxide (N₂O) : A greenhouse gas, also known as laughing gas.

* Chlorine (Cl₂) : A toxic, yellow-green gas, used in disinfection.

* Ammonia (NH₃) : A colorless gas with a pungent odor, used in fertilizers.

* Sulfur Dioxide (SO₂) : A colorless gas with a pungent odor, contributes to acid rain.

Note: The color of gases can be difficult to determine, and some gases may appear slightly colored under certain conditions.

It's important to remember that some of these gases are extremely dangerous and should only be handled by trained professionals.