adulteration

"The factory was shut down for adulterating the baby formula with harmful chemicals. "

"The being in the classroom was quiet today. "

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

"Asphalt, composed of oil and sand, is a widely used material for roads."

"He was father to three healthy kids."

"The illicit drugs were discovered hidden in the school locker. "

"The student's action of studying diligently improved her grades. "

"My mom planted many different vegetables in her garden. "

""Buying fruits and vegetables at the farmer's market is often cheaper than buying them at the grocery store." "

"The substitution of the teacher for the week was announced on the school website. "

"There is one sterling and here is another"

"Extraneous substances were found on my cup of water."