Fossils are the remains of past life that have been preserved in sediments (such as clays and peats) or rocks (such as slates and sandstones).
(Fossils; are; the remains of past life that have been preserved in sediments (such as clays and peats) or rocks (such as slates and sandstones)) (the remains of past life; have been preserved; L:in sediments (such as clays and peats) or rocks (such as slates and sandstones)
Fossils the remains of past life
are have been preserved
the remains of past life that have been preserved in sediments (such as clays and peats) or rocks (such as slates and sandstones)
L:in sediments (such as clays and peats) or rocks (such as slates and sandstones