Explanation:
Single lensed Microscope for observing bacteria and protozoan
It consists of the alveolar wall, the capillary wall, and their basement membranes.
<span>Suffocation is a most leading reason of death in grain storage
bins. Grain handling industry is a high hazard industry where workers can be
exposed to numerous serious and life threatening hazards. These hazards
include: fires and explosions from grain dust accumulation, suffocation from
engulfment and entrapment in grain bins, falls from heights and crushing
injuries and amputations from grain handling equipment. </span>
Answer:
I'm pretty sure the answer is B