B, because that would be the only answer choice that you would be able to differentiate between those amounts of air and determine that air is indeed matter. Hope this helps and pls give thanks!!
Usa.gov (I recommend government related sites)
Answer:
Explanation:Democracy is considered as the best form of government because: The rulers for the country is directly elected by people. Its the government for the people, by the people. It make us allow to correct our mistakes
