题目内容：

physical science
If the continental glaciers covering Greenland and Antarctica melted completely,the sea level would rise about（     ）A.6m    B.60m    C.600m    D. 6000mThis is a choice question.Then there are three questions to judge true or false.1. Valley glaciers from when huge portions of Earth's surface are covered with ice.(______)2.The pressure of a thick mass of snow causes the underlying snow to freeze.(______)3.Glaciers usually more faster over steep slope than over gentle slope.(______)All those question,I don't know how to do it.Who can help me to answer those question?  

优质解答

If the continental glaciers covering Greenland and Antarctica melted completely,the sea level would rise about（ B ）A.6m B.60m C.600m D.6000m
如果格陵兰岛和南极洲所覆盖的大陆冰川完全融解,那么海平面会上升大约多少米呢?
This is a choice question.这是一道选择题.
Then there are three questions to judge true or false.有三道判断真假的题目.
1.Valley glaciers from when huge portions of Earth's surface are covered with ice.(__F____)
在地球表面的大部分还覆盖着冰的时候,谷冰川形成了.
2.The pressure of a thick mass of snow causes the underlying snow to freeze.(__T____)
大量厚的雪造成的压力使得底层雪结冰.
3.Glaciers usually more faster over steep slope than over gentle slope.(__T____)
比起在平缓坡,冰川通常在陡坡上移动更快.
答案：选择题B； 真假题 假 真 真.
Answer:Choice B; False True True.