"Smokeless" Natural Recordings by Native Speakers
Without smoke; not producing smoke.
A type of severe air pollution characterized by a mixture of smoke and fog, typically caused by the burning of fossil fuels, industrial activities, and vehicle emissions.
Smoke is a visible collection of tiny particles and gases emitted when a material undergoes combustion or pyrolysis, yielding an assortment of chemical compounds. It generally results from a partial or incomplete combustion process, where some fuel is burnt incompletely, leaving volatile or semi-volatile compounds behind.
adjective: cooked or flavored with smoke, typically over low heat, often for a long time; smell of or having a flavor of smoke; not being used or active.
A smokestack is a tall chimney or a structure used for the discharge of exhaust gases, such as smoke, ash, and other pollutants, from a factory, power plant, or other industrial facility. It is typically a vertical pipe or duct that rises high above the surrounding area, often visible from a distance.