The noun form for the adjective zealous is zealousness.   The word zealous is the adjective form of the noun zeal.   Related noun forms are zealot and zealotry. 1 person found this useful.
Gravity on Jupiter: Jupiter is the largest and most massive planet in the Solar System. Its mean radius, at 69,911 Â± 6 km, makes it 10.97 the times the size of Earth, while its mass (1.8986Ã1027 kg) is the equivalent of 317.8 Earths.
The force of gravity on the planet Mars is only about 38 percent as strong as that on Earth. Surface gravity on Mars is much weaker than that of Earth due to the planet's small size and relatively low mass.