Answer:
If <u>bacterial plague</u> (a.k.a. dental plague) accumulates around the teeth over a period of time, periodontal disease may result.
<span>The causes for recent amphibian declines are many, beacuse of an emerging disease called chytridiomycosis . Chytridiomycosis is a disease caused by the fungal chytrid pathogen Batrachochytrium dendrobatidis.
I hope this helps! :D</span>
A. <span>Pollution made in one country might contaminate the ground, water, and air of other countries.</span>
