I would say B because c and d would decrease competition and a would do the same, or just kill the ecosystem.
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The answer is D) 144 grams O2
Answer: THE ANSWER IS OZONE WEEEE a layer in the earth's stratosphere at an altitude of about 6.2 miles (10 km) containing a high concentration of ozone, which absorbs most of the ultraviolet radiation reaching the earth from the sun.
Explanation:
Answer:
182.156g
Explanation:
grams = 49/.269 = 182.156g needed
what is the answer to what there is nothing here