I think that carbon dioxide/pollution could be a massive change in the environment. You can find more information here
http://www.theworldcounts.com/stories/How-Pollution-Affects-the-Environment
Answer:
the partial negative charge on the O of one molecule can form a hydrogen bond with the partial positive charge on the hydrogens of other molecules.
Explanation:
Answer: a. Secondary
Explanation:
Once soil is already present all you need are animals to re establish the ecosystem
Answer:
a human and a fish also bacterium
Explanation: