Answer:
It marked the beginning of the prolonged sectional conflict over the extension of slavery that led to the American Civil War and allowed for the admission of Missouri as a state in 1821.
Explanation:
The period saw major technological advances, including the adoption of gunpowder, the invention<span> of vertical windmills, spectacles, mechanical clocks, and greatly improved water mills, building techniques (Gothic architecture, </span>medieval<span> castles), and agriculture in general (three-field crop rotation).</span>
The correct answer is C) snow and cold temperatures.
<em>The Pioneers who crossed the Western mountains in mid-1800s were threatened by snow and cold temperatures.
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The Pioneers faced so many dangers when they crossed the Western mountains in the 1800s. The heavy snow, the extremely cold weather, and the wildlife were among the threatens during their expeditions. Diseases stroke many of the Pioneers who died in the intent to cross the mountains.
Alliances, imperialism, militarism, nationalism
Hello! It is C!! They were able to have full control over the animals.