Answer:
With growing concerns over the stability of the dollar, the countries began to convert dollar reserves into gold. The demand for gold was such that President Richard Nixon was forced to intervene and de-link the dollar from gold, which led to the floating exchange rates that exist today.
Explanation:
Answer:
C
Explanation:
better ventilation systems
For a start, the surveillance in airports throughout the world has been modified ( full body scans, long lines, no liquids allowed, etc). Society became aware of terrorism and deportation since 9/11 was massive. Before that date, society has never heard of Al Qaeda, Bin Laden, Taliban movements and terrorist groups.