Cesar Saavedra

My Public / Unpublished Books (2)

• 

  COVID-19

  An informational book about COVID-19, covering its definition, spread, symptoms, prevention, and differences from other viruses.

  by Cesar Saavedra

  16
• 

  Early Earth

  This book provides an overview of Earth's history, major events, and four eras: Precambrian, Paleozoic, Mesozoic, and Cenozoic. It covers the formation of Earth, evolution of…

  by Cesar Saavedra

  17

  1