What did Samuel Langley invent

How did the construction of the erie canal improve transportation in the united states in the 1820s? a. the canal connected the great lakes to the mississippi river. b. the canal connected the great lakes to the ohio river. c. the canal connected the atlantic and pacific oceans. d. the canal connected the great lakes to the atlantic ocean.

The person who has the job of maintaining order in the house is the sergeant at arms. majority whip. speaker of the house. president of the house.

What was the purpose of the u.s navy's convoy system