The correct answer among the choices given is option B. The purpose of an expectorant is to liquefy mucous. An expectorant is a drug that aids in the clearance of mucus in the respiratory system. It thins out mucus so it can be expelled from the body easier.
Looks right to me if that's what your asking, I be happy to help if not.
Two forms of energy which those are inertia and friction
The following demonstrates how the Anasazi adapted to their hot, dry environment:
A. The Anasazi moved south where more water was available.
Due to inconsistent summer rains and snow, water could be difficult to obtain resulting in droughts.
During the 13th Century an unknown event caused the Anasazi to move toward the Rio Grande and Little Colorado River.
What type of development?
