The right option is; a. soil degradation
Soil degradation most plausibly accounts for the reduction in corn yield.
Soil degradation is an environmental problem in which the condition or quality of soil is reduced due to its improper use usually for agricultural or industrial purposes. Soil degradation can reduce the physical, chemical and biological quality of soil. Soil degradation results in loss of organic matter, soil contamination, fertility decline, and soil acidity or alkalinity which can greatly affect agricultural productivity.
<span>Salt manufacture has a long history, dating to well over 2700 BCE in China as the earliest documentation. Oklahoma's first commercial salt manufacturing occurred in the Cherokee land Indian Territory in 1815 by Major William Lovely, a Cherokee agent.</span>
It includes steep mountains like the Andes
Answer: a common language, history, or place of orgin.
Explanation:
A. Buddhism, Confucianism, and daoism