関連ワード:  what is data in geography class 12    what is data in geography practical class 12    what is data processing in geography class 12    what is data layer in geography grade 12    what is data class 12th geography practical    what are the sources of data in geography class 12    what do you mean by data in geography class 12    what is data processing class 12 geography practical    define data what are the main sources of data class 11    what is data locality