What are some of the most interesting discoveries i made so far this semester

The earth's internal process which drives seafloor spreading is

In which direction does the moving force of air flow? a-from warm temperatures to cold temperatures b-to areas of high pressure to areas of low pressure c-east to west d-from high elevations to low elevations

One disadvantage that darwin faces today is w. enemy attacks x. natural disasters y. lack of land bridge z. high population density