Questions

“Interim” means in or for the intervening period; provisional. Options B and C are synonyms of the word and A and E are irrelevant. “Permanent” is the word which best explains the opposite meaning of “interim”. Thus, option D is the correct answer4

The ancient Greek word “bárbaros,” from which it derives, meant “babbler,”.In the Greek ear, speakers of a foreign tongue made unintelligible sounds (“bar bar bar”). Similar words exist in other Indo-European languages, including the Sanskrit “barbara,” which means “stammering.”The word “barbarian” originated in ancient Greece and was initially used to describe all non-Greek-speaking peoples, including Persians, Egyptians, Medes and Phoenicians.

Diffusion is the spreading  - mixing of gases through molecular motion.

Statement coverage is a white box test design technique which involves execution of all the executable statements in the source code at least once. It is used to calculate and measure the number of statements in the source code which can be executed given the requirements.