How backdraft can happen when a house is on fire. A backdraft happen when a house is on fire and most of the oxygen inside has been used up, causing the fire to smolder and produce a lot of smoke and flammable gases. If someone opens a door or window, fresh air rushes in, mixing with these gases and causing a sudden explosion of flames. 📽️ Credits: presetexpectations Follow @thatisnewton ,All credits to respective creators/owners. DM for credits/removal #fire #learn #science #knowledge #trendin