i. The high density of population of these areas has necessitated greater intensity in the tillage of land.
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The term intensive implies that farmers in this region must expend a relatively large amount of effort to produce the maximum feasible yield from a given parcel of land. Subsistence means that the crops grown are consumed by the farmer and his family.
ii. There are two types of Intensive Subsistence Tillage-one dominated by wet paddy and the other dominated by crops other than paddy.
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iii. The islands of Pacific Ocean islands. Distribution
Asia: Practically, confined to the monsoon lands of Asia (East, South and Southeast Asia); China, Japan, India, Bangladesh, Myanmar, Thailand, Sri Lanka, Malaysia, etc.