試卷名稱:99年 - 2010 iGeo_MMT國際地理奧林匹亞競賽_地理#81779
年份:99年
科目:奧林匹亞地理
9. Foraminifer are tiny animals that are important in the food chain. The shells of foraminifer in the Southern Ocean have reduced in weight by about 30% since pre-industrial times. What has caused this?
(A)changes in diet
(C)evolution
(B)sea level rise
(D)ocean acidification
