when louis armstrong got older why did he do more singing instead of playing his horn? what happened to his lips

Sole i will mark brainlist to who answer

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.

Which of the following was not a result of the industrial revolution in europe? a. the rise of a middle class b. the urbanization of europe's society advances in agriculture and industry d. the decline of europe's large cities