Let's look at the option:
A. Only wealthy nations need to repay their debts, so it slows their
progress.
-this is not true, as not only wealthy nations need to pay back debt, but all nations
B. This is no longer a problem because debt repayment was
completely erased after World War II.
-this is not true: this is still a problem, and quite a big one.
C. Both measures rob a developing
nation of money it could use to invest in social welfare improvements.
Well, debt repayment does rob developing nation of money that it could use for other purposes: so it's true! (structural adjustment doesn't rob but it maintains the state in which the nation needs to pay back the debt)- this is the correct answer!
D. They always penalize highly developed nations rather than
underdeveloped ones.
- This is not true, as both countries are penalized, and the underdeveloped ones even more so.
At some convergent boundaries, an oceanic plate collides with a continental plate. Oceanic crust tends to be denser and thinner than continental crust, so the denser oceanic crust gets bent and pulled under, or subducted, beneath the lighter and thicker continental crust. This forms what is called a subduction zone.
Air pollution results from incomplete combustion of impure fuels.
Two-stroke engines emit 20% to 50% of their fuel unburned in the exhaust, but also a considerable amount of oil too. Air pollution is higher in this cases and includes a considerable amount of particulate matter.