I think it's A nucleus because it is the control center of it
Multiple factors were involved in the decision of exploration of Mars.
Mars is similar to Earth in size and it is the next planet. Moreover, evidence was present to suggest that liquid water existed, and may possibly still exist, on Mars. All of these factors led to the planet's exploration.
Answer:
The answer is B.
Explanation:
Progressive Era reformers sought to harness the power of the federal government to eliminate unethical and unfair business practices, reduce corruption, and counteract the negative social effects of industrialization.
Answer:
NORTHERN - favored taxes on imports, was supported by free labor, was based on industry
/
SOUTHERN - relied on enslaved laborers, was based on agriculture, opposed taxes on imports
Explanation:
WOO
Answer:
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