The more soil added makes the dead plant decompose the fastest and the quickest. According to the lab I conducted where we had one jar with 0ml of soil, one jar with 250ml of soil, and one jar with 380ml of soil. Our evidence is that on day three we saw that the plant began to decompose in the jar with 380 mL of soil and it was decomposing the fastest. The jar with 250 mL of dirt was decomposing slower than the jar with 380 mL and the petals in the jar with 0 mL of dirt were not decomposing at all.  This means that if you have a lot of dirt in one jar whatever plant you have will decompose the fastest. Another example is that on day 8 we saw that the moisture was making the plant harder to decompose. This shows that the more balance of moisture in the soil makes the soil easier to decompose the plant. It affected the plant by making the dirt moist so that it decomposed the plant quicker because when things are moist it decomposes quicker. In conclusion, the more soil you put will make the plant decompose quicker and faster and if you don’t add a lot of soil it will decompose slower.