Answer: "negative" ; "positive" .
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Answer:
Explanation:
It upsets the natural food webs in the area
i think B is the answer..
sorry if its not.
Answer:
The increased temperature in this layer is due mainly to UV absorption by various chemical species, including ozone and molecular oxygen present in the stratosphere. Maximum heating takes place in the upper part of the stratosphere. Because of the stable air, pollutant mixing is suppressed within this layer.
Its Osteoporosis, also known as porous bones. Which is characterized by weak brittle bones and low bone mass. Both men and women are affected by this disease.