The moisture is the same throughout the air mass.
The correct answer is “D”
Well right now there are issues such as unemployment, government corruption, crime, access of clean water, and energy shortages.
In the future there could be issues such as lack of better healthcare treatments and equipment and better education.
I believe we probably could if we use a cleaner source of energy such as solar power. It's renewable and almost unlimited.
Hope this helps you! :D