What happened to the phanerozoic era

What is the difference between external & internal migration

What is the climate of the himalayas? a. cold and wet c. cold and dry b. hot and humid d. hot and dry

How did the environment influence settlement patterns in colonial america? * 1 point a. early settlers stayed near rivers for farmland and transportation b. early settlers stayed in hilly areas to avoid frequent floods in coastal areas c.early settlers quickly moved to the mountains to avoid hot summers d. early settlers only lived on coastal islands to prevent indian attacks