Answer: burning processes, such as backyard burning and commercial or municipal waste incineration.
the use of fuels, such as wood, coal, or oil.
natural phenomena, such as volcanic activity and forest fires.
industrial processes, such as chlorine bleaching of paper pulp and smelting.
Explanation:
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the answer i think be a area a has more predators then area b because if it was disease or lack of food source they wouldn't that low i think
<span>pernicious form of anemia</span>
