Answer:
A and b because you want them to clearly understand what is wrong and the name but at the same time not to confuse them
Answer:
open defection_ and lack of sanitation and hygiene in general_is an important factor that cause various diseases: the most common being diarrhea and intestinal worm infections but also typiod, cholerae, hepatitis, polio,trachoma, and others.
Answer: To avoid certain aspects of career training in order to save money.
Explanation:
The answer to your question is B
Industrial smog. This is the stuff in coal power plants.