Answer:
Their road system
Explanation:
Inca Trail is the extensive trail system built during the Inca Empire. All the routes of South America directed to Cusco, the main South American metropolis of the pre-Columbian period, legacy of an old cultural tradition.
With that, they could move goods, supplies, and even armies in a much easier way, which helped with the maintenance of their empire.
Answer: The 600's
Explanation: Muhammad received revelation from the angel Gabriel, in Islam known as Jibril, the event marking the beginnings of Islam, and the revelation given to Muhammad, later to be formed and written in the Holy Book of Islam - Quran. Archangel pointed to verses, and ordered him to recite them, which will be recorded in Quran later. According to tradition, this event occurred in 610 AD, in a cave under the name Hira, located on the mountain Jabal an-Nour, near Mecca.
Answer:
The Nullification Crisis
Explanation:
During the administration of President Andrew Jackson erupted <em>The Nullification Crisis </em>between 1832–33 turning into a political major issue. <em>The Nullification Crisis </em>involved a confrontation between the state of South Carolina and the federal government. An anonymous publication called <em>“South Carolina Exposition and Protest,” </em>was released with the intention of posing the "Theory of nullification":
—the declaration of a federal law as null also voiding within state limits. It was argued that since the authority of the federal government was derived from the consent of the states, such states could nullify any federal law they considered unconstitutional.
You should just try googling these options. Only one has anything to do with the environment
