Answer: Option E. "Intensive Cultivation"
Explanation:
Shifting cultivation is defined as the agricultural system in which land plots are cultivated for the time till they exhaust their fertility and then left the land to regain their natural vegetation while cultivators move to another land.
To reduce the harmful effects of shifting cultivation on environment like deforestation, animal or bird extinction and rise in temperature, farmers opted intensive cultivation.
In intensive cultivation farmers used new techniques like irrigation, mining, and trading to reduce environmental damage from shifting cultivation.
Thus, the correct answer is "Option E".
