QUESTIONS AND ANSWERS
◉ menace. Answer: threaten
◉ infrastructure. Answer: the basic framework of a building or a system
◉ corrosive. Answer: eating away by chemicals or disease
◉ accumulate. Answer: to gather or collect
◉ deluge. Answer: an overwhelming rush
◉ thrive. Answer: prosper
◉ diligent. Answer: hard-working
◉ humane. Answer: merciful