The correct answer is: A) Hallur
Hallur is a prehistoric site located in the Raichur district of Karnataka, India. It is one of the earliest known sites of copper smelting in the world. The site has been dated to the Chalcolithic period, which lasted from about 3000 to 1000 BCE.
Archaeological excavations at Hallur have revealed evidence of copper smelting, including furnaces, slag, and copper artifacts. The copper was likely smelted from local ores, and the artifacts were used for a variety of purposes, including tools, weapons, and ornaments.
The discovery of copper smelting at Hallur is significant because it provides evidence of the early development of metalworking technology in India. It also suggests that the people of Hallur were engaged in trade with other cultures, as copper is not found locally.
The other options are incorrect because:
- Sanganakallu is a prehistoric site located in the Bellary district of Karnataka, India. It is known for its megalithic monuments, which date to the Iron Age.
- Piklihal is a prehistoric site located in the Gulbarga district of Karnataka, India. It is known for its Chalcolithic and Iron Age remains.
- Maski is a prehistoric site located in the Raichur district of Karnataka, India. It is known for its megalithic monuments, which date to the Iron Age.