Labor-saving devices are inventions that reduce the time and effort needed to perform or complete a task. Farm equipment, home appliances and construction equipment are examples of mechanical inventions that save time and physical labor.
Capricious (adj.)
1590s, "humorous;" c. 1600, "apt to change the mind suddenly, fickle," from French capricieux "whimsical" (16c.), from Italian capriccioso, from capriccio (see caprice).
Answer:
it answers the question of:
- when
- where
- how
- how much
- why
