Answer:
A vacuum breaker is an attachment commonly placed on a bibcock valve or toilet or urinal flush valve, that prevents water from being siphoned backward into the public drinking water system. This prevents contamination should the public drinking water system's pressure drop.
Explanation:
Actually, what is really being affected is the flavor of the food, or the combination of taste and smell. That's because only the taste, not the food odors, are being detected. Taste itself is focused on distinguishing chemicals that have a sweet, salty, sour, bitter, or umami taste (umami is Japanese for “savory”).
C. volunteers
i'm not sure why its volunteers but it is. i took the test and it was right.
The theory that is fundamental to all organism is the
survival of the fittest. This is theorized by Charles Darwin. Living things can
survive if they can easily adapt to changes in the environment. For example,
the cat can produce offsprings that many. Only a few can survive when they grow
up.
