Answer:
The answer is D. Poland
Explanation:
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A reason for the growth of American cities along rivers in the mid-1800s does not include option C: Rivers served as a defensive barrier against disease.
The term defense barriers defined as the issues that makes the learning of business environment is more difficult.
During the 1800s, people have to suffered from various losses specially the barriers of different rivers. These type of rivers create a issues against diseases.
Therefore, correct option is C.
Learn more about American cities, refer to the link:
a. south
b. north
by teaching them when they should plant and harvest crops
by teaching them how to use stars to direct sailing ships
by helping them create artwork from observing stars and planets
The Mayans’ study of astronomy helps them in their daily lives, By teaching them when they should plant and harvest crops.
A plant that may be widely cultivated and harvested for food or profit is considered to be a crop. A crop is what is produced when many plants of the same sort are grown in one location.
Most plants are grown in hydroponic systems or through agriculture. Macroscopic fungi (like mushrooms) and marine macroalga (like seaweed) are examples of crops, some of which are raised in aquaculture.
They were adept at foretelling solar eclipses. They also created two calendars that are just as accurate as those we use today, using astrological cycles to help with planting and harvesting.
Therefore, Thus option(B) is correct.
Learn more about crops here:
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Answer:
the second one
Explanation:
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