Sandstone is -a)Sedimentary rockb)Metamorphic rockc)Igneous rockd)Vol...
There are three types of rocks based on geological formation
1. Igneous RocksIt is also known as primary, unstratified, or eruptive rocks. There are formed by volcanic origin and are formed due to the solidification of molten mass lying below or above the earth’s surface. For example, Granite rhyolite, basalt, etc.
2. Sedimentary Rocks
It is also known as aqueous or stratified rocks—the various weathering agencies, rain, sun, air, frost, etc. Break up the surface of the earth. Due to the seasonal variation, sedimentation takes place in layers. With time, the sediments get consolidated in horizontal beds due to the pressure exerted by overlying material, for example, Gypsum, sandstone, limestone, etc.
3. Metamorphic Rocks
Metamorphic rocks are formed from igneous or sedimentary rocks. This type of rock is formed by the action of the earth’s movements, temperature changes, liquid pressures, etc. Ex-Marble, Quartzite, etc.