Answer:
a. Production movement towards PPC , b. Production movement away from PPC, c. PPC shifts rightwards / outwards, d. PPC shifts leftwards / inwards.
Explanation:
PPC is the graphical representation of product combinations that an economy can produce, given resources & technology.
Points on PPC reflect the best efficient utilisation of available resources & technology. Any point under PPC reflects inefficient utilisation of resources. Points beyond PPC are unattainable, unless growth in either resources/ technology shifts the PPC curve outwards.
a. Education quality improvement: leads to better utilisation of available human resource & hence moves production towards PPC.
b. No. of unemployed workers rise : leads to inefficient utilisation of available human resource & hence moves production away from PPC.
c. New Technical Improvement: increases the production potential of country & shift the PPC curve outwards/ rightwards.
d. Devastating war : destroying resources (factories) reduces the production potential & shift the PPC curve leftwards/inwards.