The continents do not float on a sea of molten rock. The continental and oceanic crusts sit on a thick layer of solid rock known as the mantle. While there is a layer of liquid rock in the earth known as the outer core, this layer is about 3000 km below earth's surface and is separated from the surface by the thick solid mantle. The tectonic plates do not slowly drift over time because they are floating on a layer of liquid rock. They drift because they are sitting on a layer of solid rock (the upper mantle or "asthenosphere") that is weak and ductile enough that it can flow very slowly under heat convection, somewhat like a liquid.
Answer:
One problem with Jean Piaget's ideas, addressed by Lev Vygotsky, is that Piaget's theory does not consider that <u>Instruction</u> plays a major role in cognitive development.
Explanation:
- Jean Piaget is a famous psychologist from Sweden who has worked a lot for children and their education. He has proposed a cognitive theory that tell us about the development as well as the nature of intelligence of human beings.
- Lev Vygotsky is also a psychologist from Soviet World who has proposed a theory known as Vygotsky's social development theory.
- As Jean Piaget has worked mainly for the children and Lev Vygotsky has pointed out that the Piaget theory doesn't consider that instructions play a major role in cognitive development.
I would say C. over production and D. speculation and credit.
Prohibition is the illegality of the manufacturing, storage in barrels or bottles.
The collapse of housing prices led to decreased wealth and significant problems in financial markets, as well as a decrease in expected income and a stock market collapse.
Answer:
As the options for the question are not mentioned, lets discuss the general pattern of an American family.
On an average, an American family will mostly contain 3 people. The pattern of living is a nuclear family style. A nuclear family means the mother, father ans the children living together. However, there are some minorities in America where grandparents also live in the family and their are other families consisting on only a single parent. However, the wide majority is of a nuclear family.
