Answer:
22.989769
The relative atomic mass of sodium is calculated by dividing the atomic mass of sodium by the unified atomic mass unit, which is 1.66*10-27 kg. The number of 23 amu means that a normal, or stable, sodium atom weighs 23 unified atomic mass units.
Explanation:
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I positive that the answer id D why because Without<span> them the Earth </span>would<span> be too cold for us, or any other living thing, to survive. Naturally occurring </span>greenhouse gases<span>, such as carbon dioxide and methane, allow solar radiation to reach the Earth's surface, while trapping radiation from the Earth on its way back out to space.
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An electron transport chain pumps protons across a membrane while transferring electrons from one chemical to another.
<span>The enzymes are used to cut DNA sequences into smaller pieces. Therefore the answer is D.They break DNA into fragments that vary in size.</span>
B. The processes needed for the cell to take in nutrients.
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