Answer:
C. better tools for agriculture
Explanation:
- Sumera were the first people, to migrate to Mesopotamia and created a great civilization along the 5500 million years they build the settlements along the river valleys. They had advanced levels of technology such as irrigation techniques.
It is approximately "1,250′, 1,454′ to tip," or 1,454 feet<span> (</span>443.2 m<span>) tall.</span><span>
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To perform mapping directly on a terrain, field rugged computers, a GPS, and laser rangefinders are needed.
The river is called Columbia River
