Answer:
1. medical care
3. political situations improved in several nations
Explanation:
I believe these two answer are the correct ones, because when the war (WWI) in America was over, many politics and the president were more focused on the well being of it citizens. They passed laws and improved social security for citizens which means medical care for the disable, poor, orphans, and the elderly.
Hoped this helped. :)
Surface mining. They use large trucks and shovels to extract the oil sands. Only 20% of all oil sands are close enough to the surface to be mined.
