Answer:
After reading the statement for answer, I noticed that some were true and some were false. So, I'll assume your question is related to that fact.
Here's an analysis of the statements:
Ancient civilizations once lived along the Nile.
TRUE. That's why we encounter the pyramids in that region.
Fertile lands surround the Nile.
TRUE, since the Nile is THE most important source of water in the area, it's logical for it to be the location of agriculture.
Few people live near the river.
FALSE. In Ancient times and today, the Nile shores host most of the population of Egypt, a large part of the country being essentially a chunk of the Sahara desert.
The Nile provides irrigation for surrounding farms.
TRUE. The Nile is virtually the only source of abundant water in the area.
The Nile runs through Libya and Tunisia.
FALSE. Libya and Tunisia are WEST of the country of Egypt and have nothing to do with the Nile.
So, depending if you had to find the TRUE or FALSE statements in this list, make your pick. I hope that helps.
Answer:
I believe they are internal forces.
Explanation:
Hope my answer has helped you!
If the coast-to-coast distance is about 2900 miles, it will take about ...
... (2900 mi)/(186000 mi/s) ≈ 15.6 ms
for the signal to travel coast-to-coast at light speed.
_____
There are time delays due to the amplifiers and repeaters required in the path, and due to the fact that the signals don't actually travel at the speed of light in a wire.
A test of internet speed between Seattle and Washington, DC shows a round-trip time of about 87 ms when traffic is light. Modern communication channels tend to be faster than the telegraph (especially when measured in words per minute).
Double headed arrows indicate positive or negative effects of one variable on another
