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【单选题】
What is an ecosystem service?(Please select one answer)
A.
A service provided by ecosystems that is beneficial to human beings such as ocean acidification, climate change and loss of biodiversity
B.
A service provided by nature that is not beneficial to human beings such as chemical pollution, fresh water depletion
C.
A service provided by ecosystems beneficial to human beings such as the pollination of crops by certain insects and, seafood production
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【单选题】Which commercial road conneted Dali in Yunnan and the Middle Asia?
A.
The Southern Silk Road
B.
The Northern Silk Road
C.
The Ancient Tea- Horse Caravan Road
D.
The Burma Road
【单选题】What is unique about the concept of social-ecological systems?(Please select one answer)
A.
Humans are viewed as an integrated part of the planet and its ecosystems
B.
The ecological system impacts the social system, but not the other way around
C.
Humans impact the ecological system but humans are independent of the ecological system
【单选题】Which kingdom was established in Dali during Tang Dynasty?
A.
Dali Kingdom
B.
Nanzhao Kingdom
C.
Three Kingdoms
D.
Dian Kingdom
【单选题】According to the history records, what does the term "Dali" mean?
A.
The land of literatures
B.
Conducting great administration by reforms
C.
A prosperous motropolis
D.
A Crossing of Asian Civilizations