Answer:
air masses
Explanation:
a front forms where two air masses of different temperatures meet each other
Hope that help
I want 10 point lol the answer is 40
Answer: Option C.
Population density is the total number of organisms within a fixed area.
Explanation:
Population density is the total number of organisms per unit area. Population density is calculated by dividing the number of organisms by the unit area either in square kilometers, squaremeters, square miles.
Population density =number of organisms ÷ unit of land area.
Compound: two or more different atoms chemically bonded together. Molecule: two or more different or same atoms chemically bonded together. A mixture: contains two or more substances that are not chemically bonded together Hope this helps!!!!!!