Geographer derwent whittlesey divided the world into agricultural regions (not including his area of nonexistent agriculture). were classified as found in mdcs and as found in ldcs.

The answer is "11; 6; 5".

In the year 1936, Whittlesey Derwent who was professor of Geography and also one of the prominent political geographers. He recognized eleven basic agricultural regions along with a zone where agriculture was not found. These eleven are further distributed among five which are essential in developing countries and other six which are essential in developed countries.

the answer is

a) revise existing treaties

b) do away with political alliances

c) prevent the spread of communism

d) bring an end to european colonization

the main goal of the southeast asia treaty organization was to prevent the spread of communism in southeast asia.

idk