oxidation

"Fry the onions until they brown."

"The combination of soft music and warm lighting created a relaxing atmosphere in the living room. "

"The common good of the school is ensured by a strong parent-teacher association. "

"Letters are the elements of written language."

"The scientist carefully examined the substance to determine its chemical composition. "

"We need oxygen to breathe. "

"Simple sentence: "The light bulb works because electrons flow through the wire, creating electricity." "

"They identified a burst pipe as the cause of the flooding."

"The children collected colorful objects from the beach, like seashells and smooth stones. "

"The announcement of the verdict brought a violent reaction."

"The increases in the price of milk were a surprise to the grocery shoppers. "

"The teacher gave a good example of a sentence using the past tense. "