Answer:
The correct answer is - option D. photosynthesis.
Explanation:
It is shown by the study that most of the atmospheric oxygen comes from the photosynthesis by plants as oxygen is the byproduct of the photosynthesis. Photosynthesis is the process that uses light energy, carbon dioxide, and water to produce food or glucose/sugar and release oxygen as the byproduct.
Many scientists believe that oceanic phytoplankton that releases oxygen by the photosynthesis process makes 80 to 85% of the total oxygen of the atmospheric oxygen.
Hydrogen is the only atom that does not have neutron electrons in the first energy level/shell.
30kg think of it like this imagine you are moving to your college dorm would you have you carry the box if weights or will you carry your books instead
Protons goes in the blank. the word can be used for both.
