A.
Explanation:
There are several reasons that Carbon-12 was chosen as the standard for determining the relative mass of other atoms.
- Its abundance on earth
- Carbon-12 is a very stable isotope atom
- Its has the same number of neutrons and protons hence more ideal to use for a precise calculation of <em>amu</em> (atomic mass unit) -
The mass of an atom are based on the ¹/12 mass of Carbon-12.
Well the mood is definitely not peaceful because it says they are in pain. It is not exciting because something bad is happening. It is not cheerful because they are in pain so it has to be oppressive means to be overwhelmed.<span>
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The detail from the "Address to the Niagara Movement" deals with the application of constitutional principles is "We claim for ourselves every single right that belongs to a freeborn American, political, civil and social; and until we get these rights we will never cease to protest and assail the ears of America."
<h3>What is "Address to the Niagara Movement"?</h3>
"Address to the Niagara Movement" is a speech about the rights of African American and the way they were treated in America.
The options are attached here:
- "We claim for ourselves every single right that belongs to a freeborn American, political, civil and social; and until we get these rights we will never cease to protest and assail the ears of America."
- "We want justice even for criminals and outlaws."
- "We refuse to surrender the leadership of this race to cowards and truckers."
- "We do not believe in violence, neither in the despised violence of the raid nor the lauded violence of the soldier, nor the barbarous violence of the mob, but we do believe in John Brown..."
Thus, the correct option is 1.
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