In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.

[Q]: In chemistry and physics , activation energy is the energy which must be provided to a chemical or nuclear system with potential reactants to result in : a chemical reaction , nuclear reaction , or various other physical phenomena .
[A]: The activation energy of a chemical reaction is the minimum energy that is needed to make the reaction happen .


[Q]: In marine sediments the biological production of methane , also termed methanogenesis , is generally confined to where sulfates are depleted , below the top layers .
[A]: In marine sediments methane is produced when sulfates are low .


[Q]: Although the Kansas Constitution was amended in 1986 to allow the sale of alcoholic liquor by the individual drink with the approval of voters , Stanton County has remained a prohibition , or " dry " , county .
[A]:
Although the Kansas Constitution was changed in 1986 to allow the sale of alcohol , Stanton County is still a " dry " county .