Please match the following hazard with the correct description High charges of static electricity
Has approximately the same density as air and can be
formed from materials like gas and the decomposition
of organic matter
Combustible dust concentrations
Usually found in the process of loading, unloading and
conveying combustible material
Carbon monoxide
Can be found in tanks used by the
chemical and petroleum industry
Pyrophoric substances
Can have sufficient energy to produce sparks
and ignite a flammable atmosphere