Because today we have more means of transportation, communication, and more advanced tech.
I’m not entirely sure what is being asked here, but the Tigris and Euphrates rivers is the only place in Egypt (besides the nile delta) with non-arid ground. That’s why most people live around there:
Answer: A. Beyond
Explanation:
The prefix extra in this contest means beyond. That means that a beyond solar planet is outside solar and something that is beyond terrestrial which means something outside of Earth.
B, C, and D are incorrect answers because they are not fitting into the context of the sentence.
