Chemicals in the biosphere

  1. Developed by: Mr. Ebrahim

There are many chemicals in the biosphere but how much do you know about them and how much do you know about how chemicals are cycled in the environment?

                                           

Question 1 of 10

Question 1: The four main elements in the biosphere are:
Carbon
Hydrogen
Oxygen
Nitrogen
 True
 False

SheKnows

quizzes und tests   quizzen en tests