Subsistence farming, form of farming in which nearly all of the crops or livestock raised are used to maintain the farmer and the farmer's family, leaving little, if any, surplus for sale or trade. Preindustrial agricultural peoples throughout the world have traditionally practiced subsistence farming<span>.</span>
<span>It was caused by irregular fluctuations in ocean temperatures, dry climates, and poor farming techniques.</span>
Answer:
Because it requires more resources.
Explanation:
China population statistics are unusual for a developing country because high population requires more resources to fulfill their basic needs and china population is approximately 1.5 billion which is too high but china can fulfill their needs due to their strong economy but this high population can't be manageable for those countries that have weak economic condition or for a developing country so this statistics are unusual for developing country.
