Question

2. Name the groups into which the rocks are classified
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Answer 1

Answer:

igneous, metamorphic and sedimentary rocks

Answer 2

Answer:

1. Igneous Rocks

2. Sedimentary Rocks

3. Metamorphic Rocks

Explanation:

• Igneous Rocks - These rocks are formed by the cooling of the hot molten matter called magma. It means 'fiery'. They are also known plutonic rocks. For example - granite
• Sedimentary Rocks - These rocks are formed by the deposition of sediments on the floors of the shallow seas, rivers and lakes. It is also formed by the burial of plants and trees in marshy places millions of years old. For example - slate
• Metamorphic Rocks - These rocks are sometimes formed from igneous and sedimentary rocks under extreme heat and pressure in the interior regions of the earth They contains metals like iron, gold, silver etc. For example - Marble