GEOLOGY

Detailed explanation-1: -1 Answer. The fossil record is an incomplete history of life because not everything fossilizes.

Detailed explanation-2: -The fossil record documents only a small fraction of all organisms that have ever inhabited Earth. Fossilization is a rare process, and most organisms never become fossils.

Detailed explanation-3: -Fossils provide important evidence for evolution and the adaptation of plants and animals to their environments. Fossil evidence provides a record of how creatures evolved and how this process can be represented by a ‘tree of life’, showing that all species are related to each other.

Detailed explanation-4: -The fossil record certainly has gaps, mostly because the conditions required to create fossils have been rare ever since life began on Earth. A very small percentage of animals that have lived and died ever became fossils. Thus, many pieces of the puzzle are missing; some will never be found.

Detailed explanation-5: -Why don’t we have a complete fossil record of all life that’s ever lived? Fossil formation requires a rare mix of physical and biological conditions. Fossils must be exposed at Earth’s surface to have a chance of being found. Fossils can be destroyed when rocks erode, melt, or change composition.