Masks are a key measure to suppress transmission and save lives. These masks are intended for industrial workers to prevent dust and particles from being breathed in as the valve closes on inhale. However, the valve opens on exhale, making it easier to breathe but also allowing any virus to pass through the valve opening. This makes the mask ineffective at preventing the spread of the virus or any other respiratory virus.
The answer is letter b.
He gives her a kiss. He kiss Aunt
Sally in the mouth and that causes her to hit Tom with her spinning stick. She considers Tom’s behavior inappropriate
and disrespectful that prompted her to hit Tom.
