The correct answer would be A, or 'to fight racism at home and abroad.'
Answer:
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Answer:
1. Is that on May 20, 1964 there were two astronomers working at a New Jersey laboratory turned a giant microwave antenna toward what they thought would be a quiet part of the Milky Way.
2. And they were trying to make adjustments to their instrument before looking at more interesting things in the sky.
Explanation:
What they discovered changed science forever: Arno Penzias and Robert Wilson found the faint afterglow of the Big Bang.
Arno Penzias and Robert Wilson
The main way in which labor was different after the Industrial Revolution than it was before was that prior to the industrial revolution, many items were made by hand, whereas after it, people "manned" machines that would assemble the items instead.