explain what is wrong with the plant?

Question

a woman bought a healthy plant from a shop, but 3 months later the plan had developed yellow leaves.
explain what is wrong with the plant, and what the woman should do to make it healthy again.

Answer 1

There are lots of possibilities, but yellow leaves are an indication of too much water. (Again, that's just one possibility.)

Answer 2

maybe .. the amount of sunlight the plant is used to changed .. for the worse (not enough sunlight). Another possibility is that the plant is getting too little water or too much water.