Answer: working mental ability degenerates while the procedural memory remains stable
Explanation: Aging generally results in changes and lower functioning in the brain, leading to problems like decreased intellectual function and neurodegenerative diseases such as Alzheimer’s.
In Older Adulthood, Memory degenerates, so older adults have a harder time remembering and attending to information. In general, an older person’s procedural memory tends to remain stable, while working memory declines.
Rwanda is where there is tension between Tutsi minority and Hutu majority.
Answer:
b) negative reinforcement
Explanation:
Negative reinforcement has to do with rewarding or responding to a certain stimulus or behaviour by respond in a negative or averse manner.
Mary tries to change Pearl's behaviour by refusing to making a comment or responding to Pearl speaking her native language when she's capable of expressing herself in English. They do this so she would learn to speak English more and get used to it.
Pearl's family are using negative reinforcement to try and get her to speak English more often. If she uses her native language, she is ignored and not replied to unless she repeats her words in English. Ignoring her is the averse method her family is using to get her to respond to the stimulus of speaking English.
Trade flourished because these progressing empires were developing new ways to produce products and utilize agriculture in their areas, such as Han with silk and Rome with olives and fishing/seafaring. These empires has never had access to goods that were from other areas before the Silk road, causing trade to become immensely popular and relied upon.