Question 1 Organisms sharing a common ancestor
Evolutionary history

A. Fossil record
B. Anatomy
C. Common ancestry
D. Evolution

How has the scientific community addressed the safety of chemicals? a. chemicals are repeatedly tested, even those that have existed for a long time. b. existing chemicals are tested if they have never been tested before. c. chemicals are tested if they are suspected to have caused a problem. d. only new chemicals are tested.

Brainliesttt me asap! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

Why are people not able to scuba dive in the deep part of the ocean