Your three-year-old niece is upset that you have a bigger cookie than she does. You calm her down by breaking her cookie in half and pointing out that she now has two cookies to your one. You were able to convince her of this because she has not yet developed the theory of .

Your three-year-old niece is upset that you have a bigger cookie than she does. You calm her down by breaking her cookie in half and pointing out that she now has two cookies to your one. You were able to convince her of this because she has not yet developed the theory of CONSERVATION.

Explanation:

Conservation is a part of the developmental task in psychology, which is processed between the 4th and 7th year of life. The term was described by Jean Piaget, a Swiss philosopher, natural scientist and developmental psychologist. He described the conservation process as part of one of the developmental stages during childhood. Conservation means understanding that the amount of a substance remains the same even when its form changes, being a psychological phenomenon observed in preschool children and consists in the impossibility of comprehending by them such characteristics of surrounding objects as quantity, size, volume, etc.

not  

cuba  

russia  

iraq  

el salvador  

explanation:

known as the land of volcanoes, el salvador has visit seismic tremors and volcanic movement. it is the main nation in central america that does not have a coastline on the caribbean sea. about portion of all salvadorans live in the wide open. they are poor and don't have power or running water in their homes. in 1525, pedro de alvarado, a lieutenant of cortés's, vanquished el salvador. el salvador, with alternate nations of central america, pronounced its freedom from spain on sept. 15, 1821, and was a piece of a league of central american states until the point when that association broke up in 1838.