Questions

The scarcity definition of economics is credited to Lionel Robbins.

Ionisation energy is the energy required to remove one mole of electrons from one mole of gaseous atoms. Atoms are more stable when they have full valence shells.

The ionization energy decreases from top to bottom in groups, and increases from left to right across a period.

HGence, in this trend Francium (Fr) has the lowest ionization energy.

Both options (A & B), summarizes a result of the protestant reformation.

The Protestant Reformation was a major 16th century European movement aimed initially at reforming the beliefs and practices of the Roman Catholic Church.

Call center is a subset of BPO. 

From the cornea, the light passes through the pupil. From there, it then hits the lens, the transparent structure inside the eye that focuses light rays onto the retina. The iris, or the colored part of your eye, regulates the amount of light passing through.