Answer:
Scientists used major changes in life forms in the fossil record to form the geologic time scale.
A) The volume of trade between Europe and North America increased
the equator
Explanation:
During The Spring and Autumn Equinox both Northern and Southern Hemisphere get the same amount of Sun.
Because some states refused to ratify the Articles of Confederation.
The Hadean era was before rocks were formed so I’d say b) . Hope this helps :)
