humus

"After school, my family went to a restaurant for dinner. "

"The cud is then reswallowed and further digested by specialized microorganisms that live in the rumen."

"The box contained old photographs. "

"The school's science fair featured several different biological specimens. "

"The decomposition of fallen leaves in the garden created rich compost for the flowers. "

"Pit row was abuzz with activity."

"In biology class, we learned that technically, even fruits are vegetables because vegetables are any plant. "

"The scientist studied the properties of the synthetic fiber. "

"After the flood receded, thick mud and debris were left as residues in the streets. "

"The scientist studied the chemical composition of the soil sample. "

"The addition of five more items to the agenda will make the meeting unbearably long."

""During the war, the refugees lived in guarded compounds for their safety." "