At the end of which geologic era did a large mass extinction take place that wiped out more than 90% of all marine life?

Oque provoca coroço no peito do homen?

Which of the following is the main reason early new england had villages rather than cities? 1. the area did not have ports for trade. 2. not many people lived in new england at the time. 3. new england did not have the natural resources to support cities. 4. the settlers set up new england with villages for religious reasons.

What is the main difference between primary and secondary sources? a. primary sources are historical documents, and secondary sources are modern-day documents. b. primary sources are derived from museums and archives, and secondary sources are created by history students and academics. c. primary sources are found in ancient places with a rich history, and secondary sources are found in historical journals and blogs. d. primary sources are created during a particular historical era, and secondary sources are created by studying primary sources.