How is acid rain formed ?
Most of the, vehicles on the road and industries emit out gases like oxides of nitrogen and sulphur. Acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to formmore acidic pollutants, known as acid rain.
The wick in a spirit lamp does not burn while the spirit in it burns. Give two reasons for the wick not burning.
What should be done to control fire due to oils ?
State two disadvantages of incomplete combustion.
How does water help in extinguishing the fire ?