GEOLOGY

Detailed explanation-1: -The fossil record is considered to be incomplete because fossilization is a very rare phenomenon. Most organisms decompose quickly after their death, and their remains dispersed. In order for fossilization to occur, the remains have to be covered by sediments and stay undisturbed for thousands of years.

Detailed explanation-2: -For many reasons, the fossil record is not complete. Most organisms decomposed or were eaten by scavengers after death. Many species lacked hard parts, which are much more likely to fossilize. Some rocks and the fossils they contained have eroded and disappeared.

Detailed explanation-3: -Solution: Fossils are used for tracing the evolutionary relationship between species and are examples of preserved traces of living entities. “The age of fossils cannot be determined.” is a false statement.

Detailed explanation-4: -Fossils are most likely to be found in sedimentary rock.