Sound is a wave passing through some __?__ 2. The speed of sound depends on the __? and ? of the medium through which it travels

Water(like when there is a hurricane)some foods(not enough for everyone)

In financial aspects, a depression is a sustained, long haul downturn in monetary movement in one or more economies. it is a more extreme monetary downturn than a recession, which is a slowdown in financial action through the span of a typical business cycle. a depression is an irregular and extreme type of recession. so depression is always followed by recession but it is not correct to state that a depression always follow a recession.