PLS EXPLAIN FOR EACH QUESTION..

Amain reason most irish immigrants came to the united states in the mid-1800s wasa) to find jobs as skilled workers.b) to escape a potato famine.c) to live in less-crowded conditions.d) to escape religious persecution.

The development of humans was directly dependent ondevelopment of a language.development of communication between people.e development of tools.litdevelopment of the wheel.

Ahistorian who compares the expansion of political systems to the expansion of economic systems is organizing history by