Who was the most likely to become rich on the mining frontier? (Who was most likely to get rich on the mining frontier?) * a) an individual miner b) a hotel owner c) a storekeeper d) a mining company

we both have laws and checks and balances.

a factory opens that mass-produces light bulbs.

explanation:

not sure if that's an answer to your questions but this is an example! : )

i believe

clean air is essential for health and survival

clean air provides nitrogen gas for plant respiration

clean air supplies oxygen that enables living organisms to breathe

hope this

i am brianly

sorry if this doesn't