Which one of the following best reflects piaget’s notion of equilibration?
a. a child assimilates without accommodating.
b. a child revises existing schemes to incorporate new information.
c. a child doesn’t encounter any new or challenging ideas.
d. a child accommodates without assimilating.

the correct answer is b. A child revises existing schemes to incorporate new information.  

Explanation:

Assimilation and accommodation are two invariant processes through cognitive development. For Piaget, assimilation and accommodation interact with each other in an equilibration process.

for many centuries there were important factors which the economies of the muslim empires developed increasingly. they applied economic procedures in production, investment, finance, taxation and property. they used to tax certain goods (for example: harvest), they charged interest on money lent, they signed contracts with merchants; they relied on a common currency, and they used checks as well as promissory notes. with the money collected by means of taxation, the government provided the needy with an income. in addition, trading networks covered huge distances, so far regions started to have contact and exchange goods. this trade network covered areas of asia, africa and europe.