Chlamydia, if left untreated, it leads to the vaginal area unable to fertilize
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:
Answer:
The question there is really blur and it's hard to understand..
The answer is both a and b
