Answer: A community is all of the populations of different species that live in the same area and interact with one another. A community is composed of all of the biotic factors of an area. An ecosystem includes the living organisms (all the populations) in an area and the non-living aspects of the environment.
Answer:
Germs
Explanation:
Germs is what forms all of the following, im not sure but I think germs would go in the blank
Calcium oxide based on the above explanation is an ionic compound.
Because any other substance couldn't carry the heat and the amount of surface area gives it more of an opportunity to cool down
