The main reason why many European explorers continued to look for routes to Asia
<span><span>is because traveling over land between Europe and Asia was extremely time-consuming and expensive, meaning that a Sea route would make trade far more profitable. </span></span>
B. It reunited northern and southern China in the sixth century.
The Sui Dynasty was a relatively short one, it only lasted from 589 AD to 618 AD. Therefore, A. C. and D. are incorrect because the Dynasty was not in power at those times. So, B is correct because it did reunite northern and southern China with its creation in the 6th century.
a depression is what it is called
The west coast is more air polluted
Subsistence agriculture is the production of food primarily for consumption by the farmer and mostly found in less developed countries. Commercial agriculture is when farmers grow food for a profit.
