Answer: Option [D]The correct answer is Bangalore. Bengaluru is silicon city of India because, the Silicon Valley of India is a nickname of the Indian city of Bangalore. As Bangalore is on the Mysore Plateau, the area is also sometimes referred to as "Silicon Plateau".
Answer: Option [A]“Slash and Burn agriculture” is the name given to shifting cultivation. In this cultivation the farmers used to clear some parts of forest by burning them. As the ash improves the fertility of soil. There they sow the seeds. After harvesting they moved their cultivation to other areas. This was first followed in Africa and some parts of India. Now most of the countries have banned this type of Cultivation because it results to the deforestation of many forests.
Answer: Option [C]The correct answer is Rajasthan. Rajasthan is the largest producer of petroleum in India followed by Gujarat and Assam. Rajasthan has a share of about 23.29% in crude oil production in the country.
Answer: Option [C]The correct answer is Cuttack. In India , most of the Chromite deposits (about 93 %) are located in the Sukinda valley of Cuttack district in Odisha.
Answer: Option [D]The correct answer is Ratnagiri. The fruit was then introduced to the Konkan region in Maharashtra, Gujarat and parts of south India. Of the thousands of cultivars of mango in India, there are several different varieties of Alphonso. The best and most expensive are grown on the small Natwarlal plantation in Ratnagiri, and are hand-harvested.