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UPSC Prelims 2019 Q21: Geography – Indian Agriculture & Land Use

UPSC Prelims 2019, General Studies Paper I · Geography

Which one of the following groups of plants was domesticated in the ‘New World’ and introduced into the ‘Old World’?
  1. (a) Tobacco, cocoa and rubber
  2. (b) Tobacco, cotton and rubber
  3. (c) Cotton, coffee and sugarcane
  4. (d) Rubber, coffee and wheat

Answer: (a) Tobacco, cocoa and rubber

Explanation

New World Domesticates Introduced to Old World

CropNative toVerdict
TobaccoNew World (Americas)Native to South America; introduced to Old World post-1492
Cocoa (cacao)New World (Central/South America)Domesticated by Olmec/Maya; introduced to Europe by Spanish
Rubber (Hevea brasiliensis)New World (Amazon Basin)Native to Brazilian Amazon; transplanted to SE Asia in 19th c.
CottonBoth Old & New World speciesMixed origin - trap!
CoffeeOld World (Ethiopia)NOT New World
SugarcaneOld World (New Guinea/India)NOT New World
WheatOld World (Fertile Crescent)NOT New World

All three of tobacco, cocoa and rubber are New World domesticates. Answer: (a).

Answer: (a) Tobacco, cocoa and rubber.

Why each option is right or wrong

Key point

New World gifts to Old World: Tobacco, cocoa, rubber, maize, potato, tomato, chili, sweet potato, pineapple, cassava, sunflower, groundnut. Old World to New World: Wheat, rice, sugarcane, coffee, banana, horse, cattle, pig.

Remember

Tobacco, cocoa and rubber are all domesticated in the New World (the Americas) and were introduced to the Old World after 1492. Coffee is Old World (Ethiopian), sugarcane is Old World (New Guinea/Indian origin), and cotton has both Old and New World species.

Common mistakes

Exam tip

Columbian Exchange mnemonic: New World -> Old World = 'Potatoes, Tomatoes, Maize, Chili, Chocolate, Tobacco, Rubber'. Old World -> New World = 'Wheat, Rice, Horse, Cow, Sugarcane, Coffee'.

Sources

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