I believe Oxygen would be the answer. Which Would Be Choice #2.
THE ELECTRON TRANSPORT CHAIN is responsible for releasing energy that is used to pump hydrogen ion. The energy which is released in form of electrons are passed through the electron transport chain and used to pump protons into the thylakoid compartment of the plant cell.
Regulating body temperature
Its called the DNA,
It stores all of our genetic information that we inherited to our child.
It also carries most of the specific instructions used in the development , functioning, and reproduction of all living organisms and virus.
Answer:
These impacts include compaction, loss of soil structure, nutrient degradation, and soil salinity. The effects of soil erosion go beyond the loss of fertile land. It has led to increased pollution and sedimentation in streams and rivers, clogging these waterways and causing declines in fish and other species.