Question

If you grow a potted plant that initially weighed 200 g and eventually weighed 50 kg, would you expect the soil in the pot to change weight? Explain

Answer 1

No, there won't be any change in the soil weight. If the tree uses soil, then there must be less soil around it. But there is no difference between the amount of soil in a pot when a seed is planted and the amount of soil when the plant is grown.

The mass of a plant is primarily carbon which comes from carbon dioxide used during photosynthesis.