Questions

In Spain, where there were no protestants, a soldier named lgnatius Loyola started an organisation for clergymen to work wholly as 'soldiers of jensus' in the service of the Church. Its members came to be called jesuits. They went from place to place and won back followers in France and Germany. They established missions in india, china, Africa and the Americas to gain new adherents. The Jesuit Schools which they started to strengthen the Roman Catholic  Church are still in existence in many countries of the world.

17 and 119

A production–possibility frontier (PPF) or production possibility curve (PPC) is the possible tradeoff of producing combinations of goods with constant technology and resources per unit time.

Resistivity :

Resistivity is a measure of the resistance to the flow of electrons. 

Conductivity :

Conductivity is just the inverse of resistivity, σ = 1/ρ, where σ is conductivity and ρ is resistivity.

Example:

Think of a pipe and water, the bigger the pipe, the easier water can flow and thus the lower the resistance.