A compound is always a substance because it's made out of two or more atoms bonded together. Now a substance isn't always a compound because it takes two or more elements to create a compound in a chemical reaction, ans substances can contain only one element. In other words a substance can be constructed of one type of atom. Some substances that aren't compounds are: gold and baking soda.
Has reached it's tipping point, I think. Your question was not very specific, so hope this helps.
Answer:
pseudostratified
Explanation:
The epithelium of the nasal cavity, nasopharynx, trachea and bronchi is ciliated pseudostrtisfied columnar epithelium, often with goblet cells
The answer is C.
The water inside the potato contains more salt and other minerals than the pure water that surrounds it. Due to this osmosis will occur and the pure water will diffuse into thhe potato to bring down the salt concentration inside the potato