Match each eon with the appropriate characteristic or event. 1. Hadean eon toxic atmosphere; first bacteria 2. Archean eon buildup of oxygen; first eukaryotes 3. Proterozoic eon formation of the solar system 4. Phanerozoic eon current eon

What kind os source would a historian use to get a firsthand account of a past event

In 2001 mexico imposed a 20% tax on all soft drinks not made from sugar cane high fractals corn sit-up which is made from corn, is often used in place of cane sugar to manufacture soft drinks. which nation would most likely be impacted by mexico’s policy change?

What lured the spanish to the area of oklahoma?