Why is my bonsai losing leaves and how can I prevent it?

Your bonsai may be losing leaves due to factors such as overwatering, underwatering, improper light exposure, or pests. To prevent leaf loss, ensure your bonsai is receiving the right amount of water, light, and humidity. Regularly check the soil moisture, provide adequate sunlight, and inspect for any signs of pests. Adjust care practices accordingly to help your bonsai thrive.