Answer:
Saturn
Step-by-step explanation:
There are 8 planets in the solar system. The smallest planet is mercury where as the largest planet is Jupiter. The second largest planet is Saturn. It is a Jovian planet composed of gases mainly hydrogen and helium. It is known for its beautiful ring system which are even visible when viewed from the earth. The rings are made of ice and rock. It is the lightest planet, its density being even lower than that of water.