The conflict in Serbia between Austria-Hungary and Russia help ignite World War I because Europe split into Allied and Central powers as countries honored alliances to fight together if attacked. The balance was built in a way that just a sparkle would have be enough to cause a big flame. The conglit i Serbia was that sparkle.
<span>At Cornell university, Gibson and walk placed infants on the edge of a safe canyon to determine whether crawling infants and newborn animals can perceive depth. this famous experiment is known as the visual cliff. The </span>psychologists Eleanor J. Gibson and Richard D created apparatus <span>to investigate depth perception.</span>
Answer: identity - the answer is identity versus role confusion
Answer: First habits and primary circular reaction
Explanation:
First habits are the initial habits that a child learns between the range of one-month to four month old.Primary circular reaction are the responses that accidentally occur and baby tends to repeat those movement according to their ability.E.g.- sucking thumb in mouth etc.
According to the question ,Rebecca is displaying primary circular reaction as initial habit that she gained accidentally by putting her thumbs in her mouth for sucking it and thus, repeats the action due to enjoyment.