You and your sister are watching your nephew. initially he seems to be very interested in a recently appeared stimulus, but seems not to be very interested in it after a few seconds. your sister thinks that he might not have a very long attention span. what do you tell her? your nephew is actually displaying

The fact that the nephew initially seems to be very interested in a recently appeared stimulus, but seems not to be very interested in it after a few seconds means that he is is actually displaying habituation. The term habituation describes decrease of responses to a stimulus after repeated or prolonged presentations, as the person becomes accustomed to this stimulus. 

France played a key role in the american revolutionary war (american war of independence; 1775–1783). motivated by the ideals of the new nation which were inspired by the french enlightenment, as well as its long-term rivalry with britain and so as to avenge their territorial losses during the french and indian war, france secretly began sending supplies to the americans in 1775.

The ceremonial column.