If we want to apply a classical conditioning view of learning to our teaching behaviors, we should:

In applying classical conditioning, there should be repetition and consistency with regard to the stimuli. If proper conditioning is implemented, the students will eventually learn to behave and learn properly.  Take for instance, a teacher has made it a daily habit that if she claps her hands 3 times, this means that the students should clean their surroundings. So even if the teacher does not say a thing but as long as she claps her hands 3 times, instantly, the children will make it sure to clean up their space. This will only be successful, if the activity or stimuli has been made a routine. 

the technology changed agriculture in an impacting manner since many people left the field work by a cellular or other technological appliances

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.