A Commercial Drivers License (CDL) is not required for vehicles associated with which class of license (except when transporting hazardous materials)?
Class B
Class C
Class D
Class A

These factors hinder environmental protection efforts in eastern europe.

Which of the following is not considered one of the four major oceans (1 point)

Seed plants that lived during the carboniferous impact life on earth today because a. they are the ancestors of all plant life on earth. b. their remains formed coal, which is an important resource. c. they produced fossils that are used to date many geologic events. d. their presence caused oxygen levels to drop, allowing animals to evolve.