<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>
E. The United States has the largest number of immigrants today.
A warm front<span> is where a </span>warm air mass is pushing into a colder air mass, <span>https://www.windows2universe.org/earth/Atmosphere/tstorm/warm_front.html.
</span>QUICK ANSWER<span>A warm front occurs when a cold air mass retreats and is replaced by a warm air mass. Warm fronts typically bring some form of precipitation to the area.<span>CONTINUE READING</span></span>
