world economic industry trade agriculture section 6 MCQ Questions & Answers Detailed Explanation

Answer: (d)

Chile is the world’s largest copper producing country. It hosts six of the 10 largest copper mines in the world; the remaining four are located in Peru, Mexico and Indonesia. Escondida copper mine in the Atacama Desert in Chile is the world’s largest copper mine by reserve.

Answer: (d)

Agricultural products processing and market-oriented industries are important industries in this region because it is located far away from the mineral belt of the country. Cotton textile, matchbox, chemical, fish-based industries are important industries of this region.

Plantation agriculture and hydropower led to the development of this region. The location of the petroleum refinery at Kochi has added an advantage to new industries.

Answer: (a)

Donets, Kuznetsk, Lancashire and saar are coal mining areas in Ukraine, Russia, United Kingdom and Germany respectively.

Answer: (c)

Answer: (a)

Cultivation of rubber in Brazil, its native habitat, was severely hindered by blight in the early 20th century. At present, most of the world’s natural rubber is produced by rubber trees descended from rubber seedlings transplanted from South America to south and southeast Asia.

The most severe disease is South American Leaf Blight (SALB). This disease is endemic throughout the rubber growing areas in the Americas. It also poses a major global threat. The fungus can be controlled by a number of fungicides.

Some species are not susceptible to the disease, and some strains of susceptible species are resistant. Crown budding or grafting of resistant plants onto productive trees can be used to control spread.

Answer: (c)