What soil conservation technique did george washington use?

What is the meaning of the statement that all is vanity or meaningless? use full sentences

Thomas jefferson was the president of the united states. first second third fourth

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.