5. In what ways had the Incas adapted their civilization to the environment by the sixteenth century?

A. The Incas built up large floating islands of soil to grow crops in their many lakes.
B. The Incas hunted and gathered using horses they bought from Europeans.
C. The Incas built roads and bridges to facilitate networks of exchange in mountainous areas.
D. The Incas imported potatoes and wheat from far distant trading partners to supplement their diet.

The Incas adapted their civilization to the environment by building roads and bridges, cultivating floating islands of soil in lakes, and importing potatoes and wheat.

Explanation:

The Incas adapted their civilization to the environment in several ways. One way was by building roads and bridges, which allowed them to easily navigate through the mountainous terrain and establish networks of trade and communication. Another way was through the cultivation of floating islands of soil in their lakes, which enabled them to grow crops. Additionally, the Incas imported potatoes and wheat from distant trading partners to supplement their diet.

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ClaireDanes ClaireDanes · Answer 2 · 2025-05-15T10:32:49-04:00

Final answer:

The Incas had adapted to their environment by the 16th century by developing extensive road networks and bridges in their mountainous surroundings. They have built an efficient transport and communication system across the Andean region. The other claims about the Incan adaptability are incorrect.

Explanation:

By the sixteenth century the Incas had adapted to their environment in a variety of ways. Option c: 'The Incas built roads and bridges to facilitate networks of exchange in mountainous areas' is the most accurate. Living in the Andean region, the Incas developed extensive road networks that traversed steep mountains, valleys, and rivers to enhance communication, trade, and military movement. They harnessed their architectural ingenuity to overcome their challenging geographical surroundings, including the construction of suspension bridges and roads.

Options a, b, and d are incorrect. In regards to Option a, the Incas did not use floating islands for agriculture, a technique used by the Aztecs in their lakes. Option b is also incorrect as the Incas never used horses; horses were introduced to the Americas by Europeans post-Incan civilization. Finally, option d is also untrue as crops like potatoes were native to the region and not imported.

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