How do acidic igneous rocks differ from basic igneous rocks?

अंतर स्पष्ट करें

Igneous rocks may be classified as acidic or basic depending on their chemical composition.

Acidic igneous rocks contain more than 65% silica and a low percentage of oxides. They are light in colour and less dense.
Example: Granite.
Basic igneous rocks contain a low percentage of silica and a high percentage of oxides (such as iron and magnesium). They are dark in colour and dense.
Example: Basalt.

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Rock and it's Types

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अध्याय 7: Types of Rocks - Answer the questions in one or two paragraphs

अध्याय 7 Types of Rocks
Answer the questions in one or two paragraphs | Q 4

Mention any two characteristics of Sedimentary Rocks.

Which agents are responsible for deposition of sediments?

Distinguish between rocks and minerals.

What is meant by a rock?

Distinguish between Regional and Contact metamorphism.

Fill in the blanks

The interior layer is the core, which is made up mainly of iron and nickel, and is called ______.

Give one example of an area of: Igneous rocks

The word ‘Igneous’ is derived from the ______ word.

Explain the type of Igneous Rocks.

Match the following: