Answer: b. False
The Maya were NOT the first Americans to use horses and wheeled carts.
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A UN General Assembly resolution called on the Taliban to protect the country's cultural heritage. After al-Qaeda operatives attacked the United States on September 11, 2001, Omar rejected U.S. demands that he give up bin Laden. U.S. forces invaded Afghanistan in October 2001, and the Taliban was quickly overthrown.
For Dictatorship, the second answer is incomplete, a dictator may obtain power not only through elections but by a military or institutional coup d'état, a civil war or a military intervention by a foreign power.
In a republic, power is held by those citizens that are able and government is a public matter (res publica in latin) to vote and the power comes from their vote during elections.
In ancient India, the Untouchables were the people who happened to fall outside the formal Caste System. Usually, but not always, this pertained to low-level people in society.
Number 1: A
Number 2: C
Number 3: A
I don't know for sure if this is right!
Hope I helped! :)