It wasn't until 2012 that Feely and a team from Oregon State University finally showed with certainty that acidification had caused the problem.
Answer: The symbols stand for a single sound
Explanation: bc
Answer: It increased exposure to Western culture.
Explanation:
The way that openness directly affect Chinese culture was that it increased the exposure to Western culture.
Through openess, Chinese interacted and communicated with people form other cultures despite the cultural differences.
This is vital in the building of relationships with others from different ethnic groups, national origin etc. This brought about the exposure to the Western culture.
I can't see the text but as for your question most of the history in the history books seem (to most) to have happened a lifetime ago so they don't really see how it retains to them and their lives. They live in the present time so they want present events. I believe that although past history is important to learn, we must also take notice of the historic events that are taking place right now. It lets us know what countries are doing (I.e war,trade,ect.) as well as our own and how we are involved in the affairs we are currently in. Most importantly it as a lesson and a reminder to the future generations on how certain events caused certain destruction. It is a stain in time so to speak so they will not take the action's we took in the past to lead them to the repetition of our past and current mistakes.