Water vapor is the name of a common greenhouse gas containing only hydrogen and oxygen.
It lowered the voting age so young people who couldn't vote before now could have a say.
Answer: Two types of naturalization are citizenship by birth and citizenship by acquistion.
Explanation:
The answer should be A. Great Depression.
Public health
Sanitation standards were created to protect the common good in particular in cities.
During the Second Industrial Revolution, many began moving to the cities. Overcrowding of people and horses created large amounts of waste and very little clean water. Disease ran rampant and sanitation systems were put into place to protect the health of people.
