2 What was a common physical/geographic characteristic of all the earliest civilizations? A. rivers that could provide water for agriculture
B. rainfalls that encouraged the production of grain crops
C. a steady supply of alluvial soil
D. geographic barriers that provided protection from invasion

honeslty bro its the same thing

mount st. helens in washington erupts, causing a massive avalanche and killing 57 people on this day in 1980. ash from the volcanic eruption fell as far away as minnesota. seismic activity at mount st. helens, which is 96 miles south of seattle, began on march 16.

1.) irish.

2.) settlers could obtain cheap land nearby

3.) steam engine

explanation:

the manhattan project's indispensable man