Answer:
did you not study in your school life
Another name for false productivity is B. spinning your wheels.
To spin wheels means to waste time doing something that is not effective, to use a lot of effort but not get anything done.
The word when is an adverb
the weapons act without bias
The things that are falling are bombs. The bombs do not care what they hit. They do not have a preference for roads, roofs, thickets, or people. The bombers drop them with a specific target line up, but the bomb does not care what that is. This adds to the overall tone and mood of the poem.