The term 'IT MAY BE NATURAL' can be solved by the crossword solutions GAS (3 letters) and RESOURCE (8 letters). GAS is a general term for a substance in a gaseous state at a given temperature and pressure, such as air, oxygen, nitrogen, and natural GAS. Natural GAS is a fossil fuel composed of hydrocarbons, primarily methane, that is found in underground deposits and is used as a fuel source. RESOURCE is a stock or supply of money, materials, staff, and other assets that can be drawn on by a person or organization in order to function effectively. In this context, it may refer to natural resources, such as minerals, water, and land.