Answer:
Following are the three main reasons why indoor air pollution has become a greater concern in developed countries;
- Indoor air pollution is the cause for several diseases in children and in adults. For example pulmonary disease, lung diseases, tuberculosis and etc.
- Indoor air pollution is also increasing due to the use of older technologies being used in the households for example smoke from chimneys and old stoves that have worn out.
- There is not enough budget and awareness of indoor air pollution and neither are efficient solutions provided to cater to this pressing issue.
1. Sole proprietorship
2.control
3. profit
I think this this correct if not please correct me
All of the above is your answer
