Question

The most common type of fossils are
A. Moulds
B. Casts
C. Actual remains
D. Models

Answer 1

Fossils which are actual parts of the organisms but their soft parts become decay and disappear are the most common type fossils. First of all you should know what fossils are, these are the preserved remains of animals and plants which lived in the past in nature and these are called fossils.

Complete answer:
Let's look at options now, the first option is Moulds. Mould is imprinted on the rock, for example, a shell pattern which appears on the rock after the crustacean dies and is buried in the mud. It is formed when the sediments fill the inside and the outside of the dead organisms. These are not the most common type seen therefore this option is incorrect and hence it gets eliminated.
Moving to option B which is Casts, cast is fossil which is formed the animal, plant or other organism die and their flesh decay and their bones deteriorate due to the chemical reactions and when the mineral enter into the cavity which results in the formation of cast, these are also not the most common type of fossil therefore this option gets eliminated.
Moving to option C which actually remains. These fossils are the most common type of fossil and these are actually the body part of the organisms but the soft parts of dead animals and plants decay and disappear. Since these are most commonly found, it is the correct option.
Last option is D models. These are models made by us to compare it with real fossils and these are not the most common type. This option is thus incorrect.

Thus, the correct answer is option C which is Actual remains.

Note: Actual remains are the most common type which are actually bodies of dead animals and plants and therefore, these are mostly seen. Their soft parts decay and disappear which means that is not seen and this makes it the correct answer.