Question

In which of these rocks do you expect to find fossils? Option 1.granite .2.sandstone.3.slate..4.all of these..

Answer 1

Answer:

fossils are found in sedimentary therefore 2.option is correct

Answer 2

In sandstone, we expect to find fossils.

Option (2) sandstone is correct because it is a sedimentary rock, and fossils are found there.

Among the given options, options (1), (3), and (4) are incorrect because they are not sedimentary rocks.

Explanation for correct option (2) sandstone :

• Sandstone is an example of sedimentary rock.
• In sedimentary rock, we find fossils of plants and animals.
• These rocks are formed due to aggregation and compaction of sediments.
• These sediments deposit on the floors of the seas, rivers, and lakes, layer upon layer. These sediments are compressed, hardened, and cemented together by their weight to form layers of rocks called sedimentary rocks or stratified rocks.
• Some e.g of sedimentary rocks are -  sandstone, shale, limestone, gypsum, and conglomerate.

Explanation for incorrect option (1) :

• Granite is an igneous rock. We can't find fossils in granite.
• These rocks are formed after the cooling and solidification of molten magma.

Hence, option (1) granite is incorrect.

Explanation for incorrect option (3) :

• Slate is a metamorphic rock. So we can't find fossils in the slate.
• These rocks are formed due to the action of intense heat and high pressure on the igneous rock and sedimentary rocks.

Hence, option (3) slate is incorrect.

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