Nicephore Niepce created the first photograph.
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Answer:
1. tablets are less portable than smartphones
2. smartphones are considered necessities and tablets are considered luxuries
3. smartphones are personal devices; tablets are usually shared
4. Tablets have larger screens for more extensive use of applications as opposed to the smaller, less versatile mobile phone screens.
Right click the cell, click add cells & it should say the options (new row above etc.)