It would be "<span>Slavery was an established institution until the Twelfth Amendment was ratified on December 18, 1865" that is not true, since it was in fact the 13th amendment that ended slavery. </span>
Answer:
Correct answer is C. specialization.
Explanation:
Option A is not correct as education is a broad category, but it is not always connected with labor.
B is not correct as it is more of a way of thinking to preserve nature.
C is correct as surplus means that you have more product than you need, nothing else.
D is correct as specialization led to redistribution of labor. People were engaged in different things and thus provided their incomes.
<span>seven year war or france and indian war
</span>
<u>Answer:</u>
The extensive and deep penetrating system of rivers inside the continent helped and facilitated the explorations in it.
<u>Explanation:</u>
The deep rooted river systems facilitated the exploration of many coastal regions which were deep inside North America as the European explorers usually travelled in ships. The Mississippi being one of the most important and extensive example of such rivers.
Columbus who is credited the most to the exploration of North America too was able to access it through the coasts and the central American river coasts starting with the Bahamas, Cuba and Hispaniola and spreading to Trinidad and Tobago.
