Jeff is playing with his rattle when his mother takes it away. Instead of searching for it, he immediately begins to look at the fan. Which of the following best explains why?
a. Jeff has infantile amnesia
b. Jeff lacks conservation
C. Jeff has not yet attained object permanence
d. Jeff lacks reversibility

This is the mountain range known as the alps. which of these statements regarding the alps is true? a) the alps are the largest mountain range in asia. b) the alps protect the roman empire from invasion. c) the alps were key in preventing england from being conquered in warfare. d) the alps prevented the roman empire from taking control of most of europe.

Japan’s key exports to africa and southwest asia are mostly a) raw materials. b) human capital. c) manufactured items. d) agricultural products.

Push-and-pull factors contribute to