Answer:
Hydrogen
Explanation:
I think it is showing cellulose cell or DNA as it is inverted 180° for the option there is no option for Phosphodiester bond however I know the answer is hydrogen.
The ecosystem is an ecological system consisting of all of its biotic and abiotic factors
Acid rain, if I understand the question correctly.
The overall charge of an atom is neutral because it has the same amount of protons and neutrons. They are positive and negative so they cancel each other out.
