The more people that are migrating to urban areas (urbanization) needs more crops for the citizens which causes more people to grow crops and without crop rotating or methods to prevent soil degradation. More likely answer is that more industry grows in the urbanized areas and they have poor management of the soil which causes soil degradation<span />
One continent is Antarctic continent, one ocean is Atlantic ocean
It was divided because of the tensons between the allies and soviets
<span> Where </span>sedimentary rocks<span> are well-</span><span>exposed, relationships among each layers are easily determined. ... At the same time, mud and carbonate deposition </span>takes place<span> in offshore low-energy environments</span>