What effects did mining have in the west?

How did the british show bad leadership during the battle of the somme

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 mongols were descendants of a. pastoral nomadic tribes b. tibetan tribes c. shang nobility