Write about the categories of fossils.

1.	Write about the categories of fossils.
Answer» The categories of fossils are as follows: i. Actual remains: These are the most common type of fossils. Actual remains are generally formed in the deep oceans. Whenever the plants or animals die, their dead bodies sink to the bottom of the sea. Here, either the entire body or its hard parts get surrounded by minerals forming the parts of stones. Another way of formation of actual remains is incorporation of the entire body or part of the body in the ice. ii. Moulds and Casts: A mould is an impression of the body parts left on the soft mud of the oceanic floor. When the cavities of the mould get filled with minerals, it hardens into stones and forms cast.

Answer»

The categories of fossils are as follows:

i. Actual remains:

These are the most common type of fossils.

Actual remains are generally formed in the deep oceans.

Whenever the plants or animals die, their dead bodies sink to the bottom of the sea.

Here, either the entire body or its hard parts get surrounded by minerals forming the parts of stones.

Another way of formation of actual remains is incorporation of the entire body or part of the body in the ice.

ii. Moulds and Casts:

A mould is an impression of the body parts left on the soft mud of the oceanic floor.

When the cavities of the mould get filled with minerals, it hardens into stones and forms cast.

Discussion