I think its corn because of the key below ?
I know jobs for one, over population maybe, and because they are worried that dangerous people could be entering into the country with intention to harm. (unless this is a "only 3 right answer" kind of thing)
Answer:
What evidence suggests that life might have been possible on Mars in the distant past?
Although the surface of Mars is inhospitable today, there is clear evidence that in the distant past, the Martian climate allowed liquid water – an essential ingredient for life as we know it – to pool at the surface.
Explanation:
The gods
i think hope this helps
Answer:
In the south more black and other races aside from white american population increasing
Explanation: