Question

Sam was working under a geologist. He lost his balance and dropped the bags containing igneous rocks and sedimentary rocks, and the rocks got mixed. How would he separate them?

पर्याय

• Igneous rocks are hard.

• Igneous rocks are crystalline.

• Sedimentary rocks have strata showing layers.

• Sedimentary rocks are soft.

Answer 1

Sedimentary rocks have strata showing layers.

Explanation:

Sedimentary rocks are characterised by strata, meaning they clearly show layers formed by the deposition of sediments over time. These layers can be seen as bands or lines running through the rock, making them easy to identify. On the other hand, igneous rocks are usually crystalline and massive without any layering. Sam could therefore separate the mixed rocks by looking for these layered structures in the sedimentary rocks, helping him distinguish them from the igneous rocks that lack such strata.