The secondary atmosphere of the earth was composed mainly of carbon dioxide and nitrogen volcanic gases nitrogen and oxygen carbon dioxide and oxygen flag this question question 2 1 pts before the evolution of life produced the process of photosynthesis, small amounts of oxygen were added to the earth's atmosphere by the process of
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Biology, 22.06.2019 08:40
What best explains whether bromine (br) or neon (ne) is more likely to form a covalent bond? bromine forms covalent bonds because it has seven valence electrons, but neon has eight valence electrons and already fulfills the octet rule. bromine forms covalent bonds because it has many electron shells, but neon has only two electron shells and is tightly bound to its electrons. neon forms covalent bonds because it can share its valence electrons, but bromine has seven valence electrons and can gain only one more electron. neon forms covalent bonds because it has only two electron shells, but bromine has many electron shells and will lose electrons in order to fulfill the octet rule.
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Biology, 22.06.2019 11:40
Compare the parts of a cell and the cell as a whole to another common nonliving system (i.e., a car, a city, describe the parts of a cell and their primary function.
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Biology, 22.06.2019 11:50
Approximately what wavelength of light is best absorbed by chlorophyll a
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The secondary atmosphere of the earth was composed mainly of carbon dioxide and nitrogen volcanic ga...
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