The answer is "<span>c. Ozone in the troposphere is beneficial to living organisms."
because options a, b and d are true about ozone layer.
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Ozone layer is the area of the upper atmosphere, between around 15 and 35 km over Earth's surface, containing generally high groupings of ozone particles (O₃). Roughly 90 percent of the environment's ozone happens in the stratosphere. The ozone layer successfully squares all sun oriented radiation of wavelengths under 290nm from achieving Earth's surface, including certain kinds of UV and different types of radiation that could harm or kill most living things.
<span>Electron transport phosphorylation.</span>
You need to test the hypothesis several times and record all results. Once you obtain the same results several times, I think that means its a theory
Where people believe that public transport is better than cars because it is better suited for more people, its cheaper, less pollution and more energy efficient. On the other hand some people have this perspective that cars may become more energy efficient in future containing diesel engines, will be hybrid, fully electric and plug-in electric.