SORU: sırasıyla okunduğunda anlam bütünlüğünü bozan cümleyi bulunuz
(I) What is coal? (II) How did it get into the ground? (III) Coal mining has always been tough and dangerous. (IV) Coal is the remains of plants that died millions of years ago. (V) Prehistoric dead plants were converted into coal by chemical changes over long periods of time.