Matter does not exist in which scenario? parts of outer space where there is no air or atoms salt dissolved in water air in the lower levels of the Earth’s atmosphere leather made from cow hides

parts of outer space where there is no air or atoms

Explanation:

Matter is made up of atoms. Similar to how your cells make your body, atoms make up all and everything. This since outer spaces doesn't have atoms, it doesn't have matter as well (at least not the normal matter, it does have dark matter, which is a whole can of worms that should not be opened)