Piaget’s theory is described as a constructivist approach because he

Jean Piaget's theory impact on the curriculum of learning because teachers have to make a curriculum plan to enhance the logical and reasoning and conceptual growth of a person. The teacher joins the experience and education together so the children can learn in a better way. According to Jean Piaget, two key points enhance the learning of children  

Assimilation:

Assimilation is related to the assimilation of new information with the old information.  

Accommodation:

This is related to the adjustment of new experience with the old experience and re-framing the world.  

d. the polar jet stream   lies between the polar easterlies and trade winds should be your answer