Q. Which of the following are examples of extrusive igneous rocks?

1. Basalt
2. Andesite
3. Granite

Select the correct option from the codes given below:
Answer: Only 1 and 2
Notes: Basalt and Andesite are extrusive igneous rocks, formed by the rapid cooling of lava at the Earth's surface, resulting in fine-grained texture. Granite, on the other hand, is an intrusive igneous rock, formed by the slow cooling of magma beneath the surface, producing large crystals. Therefore, only Basalt and Andesite are extrusive rocks.