Which of the following can you correctly infer from the graph about how the ph affects the enzyme's role in the target chemical reaction?
rate of enzyme action
ph
there is a specific ph range in which the enzyme effectively lowers the reaction's activation energy
increasing the ph makes it easier for the enzyme to lower the activation energy of the target reaction.
as the ph increases, the activity of the enzyme to lower reaction activation energy is decreased.
the enzyme will not assist the chemical reaction at a ph that is below 6 or above 12.
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the answer would be knowledge about cars!

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oxygen is the first element in group 16 (via) of the periodic table. the periodic table is a chart that shows how chemical elements are related to each other. the elements in group 16 are said to belong to the chalcogen family. other elements in this group include  sulfur, selenium, tellurium,  and  polonium.  the name chalcogen comes from the greek word  chalkos,  meaning "ore." the first two members of the family, oxygen and sulfur, are found in most ores.

oxygen is by far the most abundant element in the earth's crust. nearly half of all the atoms in the earth are oxygen atoms. oxygen also makes up about one-fifth of the earth's atmosphere. nearly 90 percent of the weight of the oceans is due to oxygen. in addition, oxygen is thought to be the third most abundant element in the universe and in the solar system.