【題目】從赤道向兩極走，緯度會

A.變小B.變大C.先變大后變小D.不變

【答案】B

【解析】

根據(jù)緯線是在地球儀上，順著東西方向，環(huán)繞地球儀一周的圓圈．所有的緯線都相互平行，并與經(jīng)線垂直，緯線指示東西方向．緯線圈的大小不等，赤道為最大的緯線圈，從赤道向兩極緯線圈逐漸縮小，到南、北兩極縮小為點，進行分析解答。

在地球儀上，能畫出無數(shù)條緯線，為了區(qū)分各條緯線，人們給它們標了度數(shù)，叫緯度。緯度的變化規(guī)律為：以赤道為界，向兩極度數(shù)逐漸增大到90°。依據(jù)題意。故選：B。

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