What is an expendable resource?

What is the prize code in epicduel? Why do we use a parachute when jumping from a air craft? Do immigrants deserve to be treated equally? How can globalization processes help alleviate poverty in economics? Do air conditioner's cause air pollution? What happens when someone sues you and you don't have the money and also feel they are reaping for an accident? What does the letter you stand for in cyber bully? What is so called discouraged workers? What did Malcolm X fear? What is NAICS Code 233110? Did the green revolution help or hurt the area of norman borlaug? Where did the YMCA began? How did slavery and women's rights test the limits of revolutionary ideals? How many resident physicians in the US? Who first used the word conservation to describe the process of protecting the environment? When was Wole Soyinka Prize for Literature in Africa created? What characteristic landscape features tell you that erosion due to a landslide took place? Does adding noise help reduce noise? What is a Monarch's reign according to a historian? Why can sulphur dioxide cause acid rain?