GEOLOGY

Detailed explanation-1: -Fossils provide an important record of the species that otherwise may never have been discovered because they died long before people began keeping records. Scientists can put together how the plant or animal looked based on its skeletal structure, discover what the animals ate, and where they lived and how they died.

Detailed explanation-2: -Why do we study fossils? Fossils give us a useful insight into the history of life on Earth. They can teach us where life and humans came from, show us how the Earth and our environment have changed through geological time, and how continents, now widely separated, were once connected.

Detailed explanation-3: -Fossils are the preserved remains or traces of animals, plants, and other organisms from the past. Fossils are important evidence for evolution because they show that life on earth was once different from life found on earth today.

Detailed explanation-4: -Paleontology is packed with mysteries about living things such as plants and animals that lived thousands, millions, and billions of years before the first modern humans. To solve these mysteries, paleontologists use fossils.

Detailed explanation-5: -To establish the age of a rock or a fossil, researchers use some type of clock to determine the date it was formed. Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date ancient events.