Canals and aqueducts allow humans to transport people and goods from one place to another place.
<h3>What are Canals and aqueducts?</h3>
A canal is a man-made waterway that link up two bodies of water and allows boats and ships to travel between them.
Aqueducts are water-conducting constructions that carry a stream of water over a hollow or valley.
Canals and aqueducts differ slightly in that a canal is an architectural waterway that connects one body of water to another, whereas an aqueduct is an artificial channel built to transport water from one site to another.
Therefore, oprtion d is the correct option.
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• the Americas were less densely woven than in the afro-Eurasian region. There was no equivalent to the silk, sea, or sand roads. • Spread of agricultural products was slower and less pro owned on the Americas • Spread of distinct cultural traditions like Buddhism, Christianity, or Islam · Americas did have zones of interaction • River networks of North America, where commerce plays an important role in regions where contact was possible, the dense communication lays between rather than within the regions that housed the two great civilizations of the Western Hemisphere- mesoamerica and the Andes.
CAn you provide more information?
Answer:
D. Indian princes' inability to decide on a format of government
Explanation:
The most difficult obstacle to overcome in the creation of an autonomous state after Indian independence was achieved is "Indian princes' inability to decide on a format of government."
This is evident in the case of the likes of Jammu and Kashmir, Hyderabad State, Junagarh, and Kalat who all had difficulties in accession of their state or territory to the other bigger British Raj territory who has gained independence.
This is because they were originally using a monarchy style of governance before independence and find it hard to determine a format of government to use after independence