Which one of the following is the busiest sea route and links two industrially developed regions of the world ?

Correct — B, The Northern Atlantic sea route. It links north-eastern USA with north-western Europe, and the phrase in the stem about two industrially developed regions is the textbook description of exactly that pairing — no other ocean route joins two regions of comparable industrial weight to each other. NCERT records that about a quarter of the world's foreign trade moves along it and calls it the busiest in the world, which is why it also carries the name Big Trunk Route. Both shores are lined with long-established, deeply equipped ports, and the crossing is short by ocean standards. The other three routes are all major, but each of them joins an industrial region to primary-producing ones rather than to a second industrial core.

• (a)Mediterranean – Indian Ocean sea route — The most tempting alternative, because it passes through the heart of the Old World and serves more countries and more people than any other route, with Port Said, Aden, Mumbai, Colombo and Singapore strung along it. Serving the most people is not the same as carrying the most trade, and the regions it joins are not the two most industrialised ones.
• (c)Cape of Good Hope sea route — It connects industrial Western Europe with West Africa, South Africa, South-East Asia and the farming and livestock economies of Australia and New Zealand — an industrial region tied to primary producers rather than to another industrial core. The opening of the Suez Canal also drew away much of the traffic that once had to go round the Cape.
• (d)The North Pacific sea route — A genuinely heavy route linking the west coast of North America with East and South-East Asia, converging at Honolulu, with the great-circle line from Vancouver to Yokohama halving the distance. Its traffic has grown enormously with Asian manufacturing, but the textbook description the question is quoting — busiest, and joining two industrially developed regions — belongs to the North Atlantic.

Ocean transport is the cheapest way to move bulk over long distances, and the sea offers a surface that needs no construction or maintenance. The world's traffic nevertheless concentrates on a small number of named routes, because each links a particular pair of producing and consuming regions and is often forced through a chokepoint such as the Suez Canal, the Strait of Malacca or the Panama Canal. Naming the two regions a route joins is usually enough to identify it.

The five routes worth fixing in memory are the North Atlantic joining north-eastern USA to north-western Europe; the Mediterranean–Indian Ocean route through Suez, serving more countries and people than any other; the Cape of Good Hope route to West and South Africa, South-East Asia and Australasia; the North Pacific route across to Asia; and the South Atlantic route to Brazil, Argentina and Uruguay, which is the lightest of them because both flanking continents produce similar goods. One honest caveat belongs on the answer: this ranking is the textbook's, written from an older pattern of world trade, and the balance of shipping has shifted markedly towards the Asia–Europe and trans-Pacific lanes since. Answer the exam from the textbook description, and keep the shift in mind separately.

• The Northern Atlantic route joins north-eastern USA to north-western Europe and is also called the Big Trunk Route.
• About one fourth of the world's foreign trade moves along it, according to the standard textbook account.
• The Mediterranean–Indian Ocean route serves more countries and more people than any other, with Port Said, Aden, Mumbai, Colombo and Singapore on it.
• The Cape of Good Hope route links Western Europe with West and South Africa, South-East Asia and Australasia.
• The South Atlantic route carries the least traffic of the major routes, because South America and Africa produce similar goods.

• Choosing the Mediterranean–Indian Ocean route because it serves the most countries, which is a different superlative.
• Assuming the longest route must be the busiest.
• Reading the textbook ranking as a current traffic statistic rather than as a description of an older pattern.

Asked as a route-identification item where the stem quotes two properties at once — the busiest, and joining two industrial regions — and only one route satisfies both.

• practice — not a real PYQ

  The Northern Atlantic sea route is also known by which one of the following names?

  • (a)The Big Trunk Route
  • (b)The Great Circle Route
  • (c)The Spice Route
  • (d)The Cape Route

  Answer(a) The Big Trunk Route — the name reflects the volume of foreign trade concentrated on this single crossing between north-eastern USA and north-western Europe.

• practice — not a real PYQ

  Which one of the following major sea routes carries the least traffic, largely because the continents on either side produce similar goods?

  • (a)The Northern Atlantic route
  • (b)The Southern Atlantic route
  • (c)The Cape of Good Hope route
  • (d)The North Pacific route

  Answer(b) The Southern Atlantic route — the exchange between South America and Africa is limited because both sides offer comparable primary products.