Question

question 14
why is swidden not used in modern intensive agriculture?
seeds are genetically modified to not need it.
heavy machinery has replaced the purpose of swidden.
swidden is too harmful to the environment.
modern fertilizers make swidden obsolete.

Explanation:

Swidden, also known as slash - and - burn agriculture, is not used in modern intensive agriculture mainly because heavy machinery has replaced its purpose of clearing land and preparing it for cultivation. Modern farming methods rely on large - scale machinery for efficiency and higher yields, making swidden less relevant.

Answer:

Heavy machinery has replaced the purpose of swidden.