USA is the country in which the metric system is not followed. Hence option A will be the correct answer.
All the other countries uses metric system for their units. Due to this season there is no confusion in conversion of the units. But England has special case, its distance is measured in miles and the speed is measured in miles per hour.
The other units are measured in metric uniform. Other than USA there are two more countries which do not accepts the metric unit system they are Liberia and Burma.
Answer:
The correct answer is the B letter
Lev Vigotsky was born in Russia, 1896-1934 and stated or argued that children develop their learning through social interaction: they acquire new and better cognitive skills as a logical process of their immersion in a way of life.
Explanation:
As far as the other A, C and D options are concerned do not aply becuase:
• Jean Piaget was born in Switzerland 1896-1980. Considered the father of evolutionary psychology because he was the first person to study human psychological development in detail throughout life.
• John B, Watson was born in USA 1878-1958. Psychology only made sense through observable and measurable behavior, and so his experiments were conducted in the laboratory, where he could manipulate the environment and control the behavior of his subjects.
• Burrhus F. Skinner was born in USA 1904-1990. He led a pioneering work in experimental psychology and defended behaviorism, which considers behavior as a function of environmental reinforcement stories.
Answer:
The excretory system is responsible for eleminating waste products and filtering body fluids.
