Composition refers to the makeup or combination of different elements or substances to form a whole. In the context of Earth Science, composition is often used to describe the various components of Earth's atmosphere, rocks, minerals, and other natural materials.
The Earth's atmosphere is composed of several gases, with nitrogen and oxygen making up the majority of the composition. Other important gases include carbon dioxide, water vapor, and trace amounts of noble gases and pollutants.
Rocks are composed of minerals, which are natural, inorganic compounds with specific chemical compositions and crystal structures. The most common minerals in Earth's crust are quartz, feldspar, and mica, while the composition of rocks can vary widely based on the minerals present.
Minerals are naturally occurring chemical compounds with a specific chemical composition and crystal structure. They are classified based on their chemical composition, and there are thousands of different minerals, each with its own unique composition.