Answer to Question 1
A production point beyond the production possibilities frontier is an unattainable combination of products.
Answer to Question 2
Demand-pull inflation starts from an initial increase in aggregate demand. But if this increase is a one-time only event, the result is a higher price level but not inflation. For inflation to occur, aggregate demand needs to continue to increase. Continuing increases in the quantity of money result in continuing increases in aggregate demand, so monetary growth is necessary for a demand-pull inflation.
The nitrogen cycle. Numbers represent fluxes as 1012 g N per year (data from Schlesinger 1991, after
Pathway of urine production and elimination.
Global Coffee Production
World Aquaculture Production "لإنتاج العالمي لتربية الأحياء"
Constructing a Three-Point Recombination Map
Constructing a Three-Point Recombination Map