Committing and trying to pursue for it by taking classes
Answer:
The BOD5 for this sample is 5 mg/L
Explanation:
The BOD5 takes into consideration the difference between the initial DO and the final DO divided by the fraction of the sample tested in a 300 mL BOD flask. The problem states that the sample was directly placed in a BOD bottle so we assume that the volume used was 300 mL of the water sample. The fraction of water is 1 (300/300).

BOD5 = (10-5)/1
BOD 5 = 5 mg/L
Under the leadership of Mikhail Gorbachev, the doctrine of Perestroika called for more local control and free-market practices. The correct option among all the options that are given in the question is the second option or option "B". I hope that this answer has come to your help.
Answer:
look the same all over the Earth
Explanation:
Based on the metamorphic rock at Van Hise Rock, Rock Springs, the protoliths will become quartzite and phyllite.
<h3>What rocks will the protoliths form?</h3>
The Sandstone(Quartz) will go through processes and eventually deform into the rock known as quartzite.
Shale will go through similar degradation processes to become the rock, phyllite.
Find out more on protoliths at brainly.com/question/13496997.
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