Outdoor air pollution has been associated with deaths each year

Outdoor pollution has been associated with 200,000 deaths each year

More than 200.000 deaths.

Explanation:

Air pollution is an environmental disaster and has taken the lives of many people around the world as most people are suffering from this roble especially those of the underdevelopment and the developing nations of the world are expecting strong changes in the atmospheric circulation and thus leading to large scale deaths of people. Thus world total more than 50% of the dead in the world are caused by the spread of infectious diseases by the deadly and toxic gas as they tend to get accumulated inside the lungs and the windpipe of the man and this is caused by the carbon, sulfur and the various nitrogen gases in the atmosphere. The children are badly exposed to this environment and thus hampering their brain development and thus destroying the physical and mental development.

It is c. naturally in the environment

Ithink that the missing word is mixed