South Asia or Southern Asia is a term used to represent the southern region of the Asian continent, which comprises the sub-Himalayan SAARC countries and, for some authorities, adjoining countries to the west and east. Topographically, it is dominated by the Indian Plate, which rises above sea level as Nepal and northern parts of India situated south of the Himalayas and the Hindu Kush. South Asia is bounded on the south by the Indian Ocean and on land (clockwise, from west) by West Asia, Central Asia, East Asia, and Southeast Asia. 

The current territories of Afghanistan, Bangladesh, Bhutan, Maldives, Nepal, India, Pakistan, and Sri Lanka form South Asia. The South Asian Association for Regional Cooperation (SAARC) is an economic cooperation organisation in the region which was established in 1985 and includes all eight nations comprising South Asia. 

South Asia covers about 5.1 million km (1.9 million mi), which is 11.51% of the Asian continent or 3.4% of the world's land surface area. The population of South Asia is about 1.749 billion or about one fourth of the world's population, making it both the most populous and the most densely populated geographical region in the world. Overall, it accounts for about 39.49% of Asia's population, over 24% of the world's population, and is home to a vast array of peoples.
What ocean bounds South Asia?
How many terms are used for the southern region of Asia?
What is the first?
Where does the Indian Plate rise?
How many sections bound South Asia on land?
What is the first one?
And the second?
And the last two?
How many km does South Asia span?
How many miles?
What percentage of the world's land area is this?
What percentage of the continent of Asia?
What's the population of South Asia?
How much of the world's population is that?
What does SAARC stand for?
What kind of organisation is it?
what year was it founded?
How many nations does it include?
the Indian Ocean
bounded on the south by the Indian Ocean
Two
South Asia or Southern Asia is a term used to represent the southern region of the Asian
South Asia
South Asia or Southern Asia is a term used to represent the southern region
above sea level
Indian Plate, which rises above sea level
Four
on land (clockwise, from west) by West Asia, Central Asia, East Asia, and Southeast Asia
West Asia
on land (clockwise, from west) by West Asia
Central Asia
on land (clockwise, from west) by West Asia, Central Asia
East Asia and Southeast Asia.
on land (clockwise, from west) by West Asia, Central Asia, East Asia, and Southeast Asia. 
about 5.1 million km
South Asia covers about 5.1 million km
1.9 million
(1.9 million mi)
3.4%
or 3.4% of the world's land surface area.
11.51%
which is 11.51% of the Asian continent
about 1.749 billion
The population of South Asia is about 1.749 billion
about one fourth
or about one fourth of the world's population
The South Asian Association for Regional Cooperation
The South Asian Association for Regional Cooperation (SAARC)
an economic cooperation organisation
(SAARC) is an economic cooperation organisation
1985
which was established in 1985
eight
 includes all eight nations comprising South Asia. 
