3. What is the difference between a natural resource and materials from the earth in
economic terms?

Natural resource economics focuses on the supply, demand, and allocation of the Earth's natural resources. ... Natural resources are either renewable or non-renewable depending on whether or not they replenish naturally.

Explanation:

china unilaterally claims the entire south china sea as sovereign territory, then builds artificial islands to bolster its claim. it suddenly activates an air defense identification zone over the east china sea, and threatens to down any aircraft that does not report its position. it builds roads into indian territory, then redraws the maps to show that it is actually chinese territory. the people's republic under president xi jinping is quickly becoming the bully of asia.

the answer to your question is:

strong-mayor system