A student investigated the rate of decomposition of two different types of leaves, sycamore and beech, over a period of 12 weeks. Both samples started with an initial mass of 150 grams on day 0.
| Time in weeks | Mass of sycamore leaves in grams | Mass of beech leaves in grams |
|---|---|---|
| 0 | 150 | 150 |
| 3 | 124 | 138 |
| 6 | 95 | 122 |
| 9 | 68 | 108 |
| 12 | 42 | 94 |
Compare the trends shown in the data for sycamore leaves and beech leaves .
