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iris [78.8K]
2 years ago
6

How did inhabitants of Early River Valley Civilizations innovate to meet their needs?

History
1 answer:
Alexus [3.1K]2 years ago
4 0
To develop bronze tools,the wheel, the plow, writing and mathematics
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How has the way that we think about and study world history changed over time?
cestrela7 [59]

Historians know that the philosophy and methodology of history have changed over time and will keep changing. Many different interpretations of all historical topics exist. Historians must work to recognize the difference between facts and interpretations in their field

Hope This Helps!

7 0
2 years ago
What was a common theme in the nullification theories held by thomas jefferson and john
Annette [7]
<span>The right of states to strike down federal laws they see as unconstitutional</span>
5 0
3 years ago
What was the importance of the year 1916​
MatroZZZ [7]

Answer:he Montenegrin Campaign of World War I, in January 1916, was a part of the Serbian Campaign, in which Austria-Hungary defeated and occupied the Kingdom of Montenegro, an ally of Serbia.

Explanation: hope this helps

4 0
3 years ago
A sound wave traveling downward with a speed of about 4,000 m/s suddenly slows to 1,500 m/s not far below the Earth’s surface. W
mash [69]

The correct answer is B. An underground lake

Explanation:

Sound moves more slowly in liquids or gases than in solids, in which particles are together. Additionally, the speed of sound is measured in meters per second or m/s. In this context, if the speed of a sound wave reduced from 4,000 m/s to 1,500 m/s while traveling through the surface of Earth, which is solid, it is likely the cause is a change in the medium the wave is going through.

Moreover, the average speed of sound in air is below 400 m/s, this suggests the sound was not traveling through an open cavity. However, the speed in liquids such as water is around 1480 m/s, this is quite similar to the second speed registered. According to this, the sound wave slowed because it was traveling through a liquid medium; therefore, the answer is an underground lake.

3 0
3 years ago
This speech by president truman represents which cold war policy of the united states?
Lelechka [254]

The correct answer is A) Containment.

After the conclusion of World War II, the United States and Soviet Union emerged as global superpowers. Despite their new status and previous alliance, these two countries had very different ideas of what the post World War II world would look like. The Soviet Union wanted to spread the system of communism while the United States wanted to spread capitalism and democracy.

This is why the US adopts a policy of containment. The goal was to stop the spread of communism to other countries, as the US feared that this system severely limited the individual freedoms of citizens living within those countries.

5 0
3 years ago
Read 2 more answers
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