Table 1 shows how the diameter of different spherical nanoparticles (nanospheres) affects their surface area to volume ratio.
| Diameter of nanosphere (nm) | Surface area to volume ratio (nm−1\text{nm}^{-1}nm−1) |
|---|---|
| 3 | 2.00 |
| 6 | 1.00 |
| 9 | 0.67 |
| 12 | 0.50 |
| 15 | 0.40 |
State the trend shown by the data in Table 1.
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