NCERT Solutions for Class 8 Science Chapter 6 Combustion and .
WEBJun 21, 2021 · Incomplete combustion of carbon fuels releases carbon monoxide. It is a poisonous gas, even in low concentrations. Hence, coal should not be burnt in a closed room. Burning of most fuels results in release of carbon dioxide in the atmosphere. Higher level of carbon dioxide in the atmosphere causes global warming. Burning of coal, and .