Question

you are researching different types of dinosaurs. which would be the best source to use for your research? a social media post about animals an online video about dinosaurs a book written by a scientist who studies dinosaurs

Explanation:

A book written by a dinosaur - studying scientist is likely to be more reliable and comprehensive. Social media posts about animals may not be focused on dinosaurs or may lack accuracy. Online videos about dinosaurs can vary in quality and may not have the in - depth, verified information that a scientific book would.

Answer:

a book written by a scientist who studies dinosaurs