What causes a rubber tree leaves to yellow?

Yellowing leaves on a rubber tree can be caused by several factors, including overwatering, which leads to root rot, or underwatering, which stresses the plant. Nutrient deficiencies, particularly a lack of nitrogen, can also cause leaves to turn yellow. Additionally, exposure to direct sunlight or sudden temperature changes may contribute to leaf discoloration. Regularly checking moisture levels and ensuring proper lighting can help maintain healthy leaves.