explain why squall-line thunderstorms often form ahead of advancing cold fronts but seldom behind them

Although nelson mandela was arrested for treason and sentenced to life in prison, he was not arrested in 1964. he was arrested in 1962. therefore, letter b is false.

Light rain because storms had lightning and it started crops on fire or destroyed stuff

If a particular resource is not useful or needed then the price would be considerably low. once that resource is needed the price or value will raise depending on how useful or needed it is especially if the resource is low in quantity, the consumers would pay whatever they have to, to get that material.