One reason it was a health threat is it caused teeth to become ground down which would then lead to infections. The same was true with their eyes and lungs, sand would be blown into their eyes or inhaled into their lungs and then could cause infections.
Answer:
You can look those up online can't you
Explanation:
The correct answer is letter B
The efficiency of emergency operations centers can be vital, literally. That is why the control room technology used in these installations needs to be both extremely reliable and very easy to use. To streamline emergency management and optimally guide field response teams.
Answer:
It is the first battle of the American Revolution
Explanation:
