The correct answer is: d) All of the above.
Andhra Pradesh is a state in India that is rich in mineral resources. The state has deposits of quartz, feldspar, and graphite.
Quartz is a hard, white or colorless mineral that is found in many different types of rocks. It is the most common mineral in the Earth’s crust. Quartz is used in a variety of products, including glass, ceramics, and electronics.
Feldspar is a group of minerals that are found in igneous and metamorphic rocks. Feldspar is the most abundant mineral in the Earth’s crust. It is used in a variety of products, including glass, ceramics, and cement.
Graphite is a soft, black mineral that is found in metamorphic rocks. Graphite is used in a variety of products, including pencils, lubricants, and electrodes.
In addition to quartz, feldspar, and graphite, Andhra Pradesh also has deposits of other minerals, including iron ore, bauxite, limestone, and coal.