| http://www.w3.org/ns/prov#value | - -wide layer of sunscreen, ground-level ozone can be harmful to humans who breathe it and toxic to plants that absorb it.Plants normally take in ozone and other gases through their stomata, or pores, but when ozone levels surpass a certain amount, the gas causes cellular damage inside the plant's leaves, and they become visibly damaged with brown splotches.The ozone also reduces the rate of photosy
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