The correct answer is: a) Granite.
Khasi monoliths are carved from granite, a hard igneous rock. Granite is formed when magma cools and solidifies deep within the Earth’s crust. It is composed of three main minerals: quartz, feldspar, and mica. Granite is a very strong and durable rock, which is why it is often used in construction.
Sandstone is a sedimentary rock that is formed from sand. Sandstone is composed of small, loose grains of sand that have been cemented together. Sandstone can be found in a variety of colors, including red, brown, yellow, and white. It is a relatively soft rock, and it can be easily eroded by wind and water.
Marble is a metamorphic rock that is formed from limestone. Limestone is a sedimentary rock that is composed of calcium carbonate. When limestone is subjected to heat and pressure, it transforms into marble. Marble is a very hard and dense rock, and it is often used in construction and sculpture.
Laterite is a type of soil that is rich in iron and aluminum oxides. Laterite is formed when tropical soils are exposed to weathering and leaching. Laterite is a very hard and durable soil, and it is often used in construction.
In conclusion, Khasi monoliths are carved from granite, a hard igneous rock. Granite is formed when magma cools and solidifies deep within the Earth’s crust. It is composed of three main minerals: quartz, feldspar, and mica. Granite is a very strong and durable rock, which is why it is often used in construction.