Pretty sure the answer is A
<span>Although China's agricultural output is the largest in the world, only about 15% of its total land area can be cultivated. China's arable land, which represents 10% of the total arable land in the world, supports over 20% of the world's population. </span>
It has been said that grandchildren, even in most cases fare well living with their grandparents, many face the risk of not only poverty circumstances but also face more psychological problems than those living with traditional two-parent families. Most of the negative circumstances that lead the children to leave with their grandparents are children with <span>adolescent parents or child maltreatment. </span>
The most influential factors include the parent material (the rocks from which thesoil<span> has come), the </span>climate<span> and terrain of the region, as well as the </span>type<span> of plant life and </span>vegetation<span> present, and, of course, human influence. ... These </span>soils<span> but are less leached than the tundra </span>soils<span>.</span>
