Question

What are the two types of crust?


Continental and Oceanic


Oceanic and Sima


Continental and Sial

Answer 1

The two types of crust are **Continental and Oceanic**.

- **Continental crust** is thicker and less dense, primarily composed of granitic rocks.
- **Oceanic crust** is thinner and more dense, primarily made up of basaltic rocks.

The other terms, "Sima" and "Sial," refer to the composition of the Earth's crust, where "Sima" is a term used for rocks rich in silica and magnesium (typically found in oceanic crust), and "Sial" refers to rocks rich in silica and aluminum (typically found in continental crust). However, the primary classification is still by continental and oceanic types.