Earl is an extremely aggressive child who often hits other children when he can't get his own way. earl is now seeing a behavioral therapist who has discussed appropriate ways of interacting with peers and has shown earl several videotapes of children resolving conflicts in nonaggressive ways. earl has also engaged in "role play," during which the therapist has provided corrective feedback and positive reinforcement. in this case, the therapist is using to develop earl's ability to interact with his peers.

two jet streams that directly affect the formation of weather in the continental part are a polar jet and a subtropical jet. they are responsible for the transportation of weather systems, which directly affect people. the polar front is the boundary between cold air from the north pole and warmer equatorial air. both the polar jet and the subtropical jet blow from the west to the east, and follow the boundary between cold and warm air.

the strongest jet streams are polar jets, while subtropical jets are somewhat weaker.

the right answer is c. the polar jet stream is generaly stronger than the subtropical jet stream.