The first black president was elected and this was the way in which the presidential election of 2008 was unique in American history. The correct option among all the options that are given in the question is the third option or option "C". I hope the answer comes to your help.
Answer:
Explanation:
Around 1830, producing 100 bushels of wheat required 250 to 300 hours of labor. By 1890, the labor required had decreased to between 40 and 50 hours. Wheat production efficiency improved five to eight times in this period.
In 1850, it took 75 to 90 hours of labor to produce 100 bushels of corn. By 1890, the same amount of corn required only 35 to 40 hours of labor. The amount of corn produced per hour of labor approximately doubled between 1850 and 1890.
Production improvements are linked to innovations such as the use of chemical fertilizers, threshing and mowing machines, and better plows and harrows.
Hope this helps:D
<u><em>-Jazz</em></u>
Answer:
Out of the choices given, enemy nations using sophisticated warfare to overpower the outdated tactics of the empire brought an end to the great West African empire.
Explanation:
<span><span>"Inherent weakness:<span> First, the Turco-Afghan Empire was built on the power of the sword. It never rested on the foundation of the good-will of the ruled, without which on Empire can last long.</span></span><span>Absence of strong rules:<span> Secondly, the organization of the empire was inherently weak. The successors were weak and inefficient. If the reigning prince happened to be strong, it worked. But if the ruler proved a weakling, the whole structure gave away. Unfortunately after the death of Sultan Firoz on strong ruler arose and successive rule of weak kings hastened the process of decline.</span></span><span>Unenlightened policy of the Govt.:<span> Thirdly, the Turco-Afghans rules failed to evolve any broad and enlightened policy of government. They were mostly orthodox and intolerant in their views so that they failed to enlist the moral support of the Hindus who formed the bulk of the population.</span></span><span>Mistakes of Muhammad-bin-Tughluq: Fourthly, the wild and visionary projects of Sultan Muhammad-bin-Tughluq plunged the country in hopeless chaos and confusion from the effects of which it was never destined to rise again.</span><span>Absence of popular support: Fifthly, the Delhi Sultanate is based on military strength and not on popular support. As a result of this, when the military power weakened because of the weak Sultans, self- seeking provincial leaders and military generals revolted against the Sultanate. In the 14th century, many provincial leaders declared themselves free leading to the disintegration of Delhi Sultanate.</span><span>Invasion of Tamer: Finally, the invasion of Tamerlane, gave the final blow to the remnants of the Turco-Afghan Empire, so that fell to pieces almost immediately"</span></span>
