GEOLOGY

EARTH SCIENCE

PALEONTOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which statement BEST describes how the fossil bones of a dinosaur are formed?
A
The dinosaur became trapped in amber.
B
The dinosaur was covered in sediment.
C
The dinosaur was frozen in ice.
D
The dinosaur stepped in wet mud.
Explanation: 

Detailed explanation-1: -The most common process of fossilization happens when an animal is buried by sediment, such as sand or silt, shortly after it dies. Its bones are protected from rotting by layers of sediment. As its body decomposes all the fleshy parts wear away and only the hard parts, like bones, teeth, and horns, are left behind.

Detailed explanation-2: -As more layers of sediment build up on top, the sediment around the skeleton begins to compact and turn to rock. The bones then start to be dissolved by water seeping through the rock. Minerals in the water replace the bone, leaving a rock replica of the original bone called a fossil.

Detailed explanation-3: -Dinosaur fossils come in two forms: body fossils and trace fossils. Body fossils are what we usually think of when we think of dinosaurs: bones, teeth, bony armor, rare soft tissue impressions, and so on.

Detailed explanation-4: -True Form fossils are formed when the animals soft tissues or hard parts did not decay over the years because they are trapped in sap that hardens to become amber. This evidence gives scientists the BEST observation of past plants and animals. Fossils start out as living things.

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