Give the name of the person that used "letter bombs" as a terrorist weapon. (Not the press nickname.)

Which answer best describes an advantage of shipping goods by canal? a) most towns would rather have canals then noisy railroads b) goods could travel very fast downstream in the canal system c) traveling by boat is a much more relaxing way to transport goods. d) heavy loads of goods could travel by boat more easily then if pulled by horses.

In a low-income household in the developed world, more than 30% of a woman's income typically goes toward a. transportation costs b. child care c. clothing and incidentals d. the repayment of educational loans

Which of the following is/are a major technological advances of the mayan civilization? a. the calendar c. math b. architecture d. all of the above