Piaget used the word schema to refer to a collection of ideas that functions as a basic unit of understanding. The schema is process of acquiring knowledge. According to Piaget people are constantly learning a new information and new things and because of that they are developing a new schemes and the old ones are being a modified.
The correct answer is belief perseverance.
Perseverance is a quality of those who persist, who are consistent in their actions and do not give up in the face of difficulties.
To persevere is to achieve your goals due to the fact of staying firm and faithful to your ideas and purposes.
A civil war erupted in southern republics years of economic stagnation left it far behind Western and Asian countries
Radiation shield
security blanket
weathering the storms