They could then find out why the rocks and earth is that way and why the area looks like it does in the present and past
Answer:
Correct answer is ethnically homogenous.
Explanation:
Poland is a country where most of the people declared themselves as Poles. That means that there are practically no minorities in the country. This is a rare case in Europe that this large percentage of the people are belonging to certain nation. Of course this is due to fact that Poland had specific history.
The answer is:
A number larger than 180 degrees.
Light beam messages are used in the hope of making contact with aliens and towards two planets that may be capable of supporting life. The messages were directed towards a red dwarf star and is expected to twelve (12) years to reach it.