1.

Question : Among the following which one causes maximum indoor chemical pollution ?(A) burning coal(B) burning cooking gas(C) burning mosquito coil(D) room spray

Answer»

burning coal
burning cooking gas
burning mosquito coil 
ROOM SPRAY 

Solution :Burning coal CAUSES more INDOOR chemical pollution as it releases `CO_(2) or CO` which can threat the human health.


Discussion

No Comment Found