which of these is the best description of a rock

Rocks are structural minerals found on the earth's surface. It is a naturally occurring solid mass which are occurred due to various processes on the earth's surface. Rocks are rich in minerals found on the earth's crust. Rocks are produced due to the solidification of lava, which when expelled from a volcano after that the solidified material goes through several processes and undergo several weather conditions and climatic changes to form different types of rock. There are different types of rocks that are found on the earth's surface.1. Igneous rock- Rocks that are formed due to the solidification of lava or magma are known as igneous rock. This is one of the main rock types.Examples- Granite, pegmatite, etc.2. Metamorphic rock- When Igneous rock undergoes several climatic changes such as erosion, and rainfall, and the rock are eroded to from metamorphic rock. This process is called metamorphism.Examples- Slate, Gneiss, etc.3. Sedimentary rock- Rocks that are produced by the accumulation and deposition of elements on the earth's surface are called sedimentary rocks. These rocks are formed by the dead decomposition of plants, animals, etc. These rocks are easy to break and fragile.Examples- Sandstone, Limestone, etc.To know more about those kinds of Rocks:https://brainly.com/question/6565164