Meet Bob, the plant

Hi everyone!
My name is Abongile, and I named my plant BOB. He is one of the green plants, and I"ve been recording data on his wellbeing for the past two weeks. After comparing the data with other people I realised that Bob is doing just fine, he is has new shoots and a few leaves falling every other day. An interesting observation that I made was the difference in the colour of the old leaves and the new leaves. The new leaves appear more greener than the old leaves. Also, some of the leaves appear to be losing colour and are turning yellow.
Thats all from me and Bob for now, take care!