Chinese surnames are used by Han Chinese and Sinicized ethnic groups in Mainland China, Hong Kong, Macau, Malaysia, Taiwan, Korea, Singapore, Vietnam and among overseas Chinese communities. In ancient times two types of surnames existed, namely xing (Chinese: å§; pinyin: xÃ¬ng) or lineage names, and shi (Chinese: æ°; pinyin: shÃ¬) or clan names.
An ice sheet is a large permanent layer of ice covering a continental shelf, defined as having an extent greater than 50,000 km2 (19,305 mi2). An ice sheet is larger than a glacier or ice shelf.
Ice sheets - large bodies of stagnant ice (except perhaps those at the poles. Glaciers - ice that is moving. So an ice sheet and an ice cap are more or less synonymous except for the location, and the key distinction to define a glacier is that it has to be moving. If a glacier were to stop moving (flowing) then it would be called an ice sheet or an ice field. Source(s):