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Pepsi [2]
3 years ago
15

Researchers studying microbial activity at another active oil-spill site found decreasing levels of methane over the course of s

everal months, but no changes in oxygen saturation in any of their repeated samples. How should they interpret these results
Biology
1 answer:
lana66690 [7]3 years ago
4 0

Answer:

Methanotrophs.

Explanation:

Methanotrophs are those microbes (bacteria) which feeds on methane or used methane as energy source for their survival. These type of microbes survive by using single carbon compound as a source of energy. So we can say that due to the presence of Methanotrophs, the level of methane decreases while there is no change occurs in oxygen saturation level.

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What is the same about the electronic structures of lithium and sodium?
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Answer:

Sodium and lithium are in the same group of the periodic table; this is because they both have the same number of electrons in their outer shell (1 as indicted by the group number). this commonality is the reason they have similar chemical properties. As we go down the group however, the electronic structure of atoms of an element changes as that there are a increasing numbers of ‘shells’.

Electron ‘shells’ are filled according to ruled of quantum mechanics however to simplify things in this case the first shell can fit 2 electron, the second 8, and the third shell 8. Lithium has 3 electrons, hence it the first shell is filled, and 1 electron occupies the second shell. Whilst Sodium has 11 electrons, hence its first two shells are filled and the third shell is occupied by one electron.

To expand on this question, the duet/octet rule is a rule in quantum mechanics that observes that main group elements tend to be stable with a full outer shell.

This explains why sodium and lithium is found in the form of Li+ and Na+ ions in nature.

Explanation:

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Answer:

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4 0
2 years ago
Alex is at a rock concert. when his ears send a signal to his brain that he has heard a sound, this process is most accurately c
I am Lyosha [343]
Alex is at rock concert. ..................................................... is most accurately called SENSATION. But ................................................. is most accurately called PERCEPTION.
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How did farmers observed by Charles Darwin take advantage of natural variation to improve their livestock?
algol [13]

Answer:

They used artificial selection

Explanation:

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