The gas that usually causes explosions in coal mines is

A. Hydrogen

B. Carbon monoxide

C. Air

D. Methane

Answer: Option D

Solution(By Examveda Team)

There are two main types of coalmine explosions: methane and coal dust. Methane explosions occur when a buildup of methane gas contacts a heat source and there is not enough air to dilute the gas level below its explosion point.