Answer:The process of burning materials with the aid of oxygen is called combustion. This is confirmed by the search results, particularly in the first result [1]. The question asks about the process of burning materials with oxygen, and the correct answer provided is "combustion". Combustion is a chemical process that involves the rapid reaction between a substance with an oxidant, usually oxygen, to produce heat and light. It's essentially what happens when we burn wood, gas, or other fuels.