There is nothing to answer
The correct statement is that viruses are not living, although this concept is widely debated. In truth, viruses are neither living nor non living, they have not been classified properly as of yet. Viruses do NOT have organelles and they can NOT produce their own energy thus they rely on other cells to provide energy and to reproduce and spread the virus for them to other cells. (I'm fascinated by viruses, sorry i rambled!)
Answer:
four billion years ago the earth had a layer of ozone gas
The correct answer is: Protons are pumped out of the mitochondrial matrix into the intermembrane space
Chemiosmosis can be described as movement of ions across a selectively permeable membrane, down their electrochemical gradient. It occurs during the cellular respiration within mitochondria and it is involved in ATP synthesis (oxidative phosphorylation via ATP synthase).
Electrons from electron carriers (NADH and FADH) donate electrons to the electron transport chain and that causes changes in protein complexes of electron transport chain. As a consequence, protein complexes pump H+ across a selectively permeable cell membrane from the mitochondrial matrix into the intermembrane space of mitochondria.
H+ can only get back and pass through the inner mitochondrial membrane with the help of ATP synthase (down their electrochemical gradient). ATP synthase turned by the force of the H+ diffusing through it forms ATP by adding a phosphate to ADP.
The answer is active transport