This statement is true. Agriculture was the primary source of income, in the pre-colonial and colonial eras in most of Southeast Asia.
<h3>What is the major source of development in Southeast Asia?</h3>
Southeast Asian nations are natural hubs. Because of their geographical location, it is near to equator line. Agriculture activities are the primary source of income in Southeast Asian regions.
Some other sources are marine life, plenty of water, fertile valleys, timber, minerals, geothermal energy, and petroleum reserves are the major sources of the economy pare-colonial and colonial eras in most of Southeast Asia.
Therefore the Southeast Asian nations depend upon the primary sector.
Learn more about Agriculture here:
brainly.com/question/3632132