I think that the beginning of the question says "ill health"
Yes, this is true. low earnings are often correlated with bad health - it's because poor people have less access to health care, less access to healthy food and might be forced to do jobs which are stressful and demanding.
Water heat at a different rate than land because water has a higher capacity for storing heat than does land surfaces.Hope this helps !
Answer:
A, They mapped the land and reached the Pacific Ocean, helping the US set claim.
Add-on:
I hope this helped at all. I'm sorry if its incorrect.
Areas with mountains is the answer
