Chemistry
Chemistry, 10.12.2020 15:10, okokjadee

Explain how scientists know the oxygen level in the atmosphere has changed because of plants. Could our atmosphere still be changing?

answer
Answers: 1

Other questions on the subject: Chemistry

image
Chemistry, 22.06.2019 06:30, khalaflaf2684
If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution
Answers: 1
image
Chemistry, 22.06.2019 12:30, AnastasiaJauregui
Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together
Answers: 1
image
Chemistry, 22.06.2019 18:00, ameliaxbowen7
Heat is the total potential energy of a substance that can be transferred. true false
Answers: 1
image
Chemistry, 22.06.2019 22:00, choatefarmsus
Does the number of ions in solution increase, decrease, or remain constant? it continuously decreases. it continuously increases. it decreases at first, then increases. it increases at first, then decreases.
Answers: 3
Do you know the correct answer?
Explain how scientists know the oxygen level in the atmosphere has changed because of plants. Could...

Questions in other subjects: