I am sure
what are the reason that arthropodans are abundant in nature
No, it is very rare.
Yes, sulfur is abundant in nature. It is the 16th most abundant element in Earth's crust, commonly found in minerals such as pyrite and gypsum. Sulfur is also present in natural gas, crude oil, and ocean water.
Power, Control, Religion, Cheap Abundant Land, and Personal Reasons
It isn't. Hydrogen is.
Zirconium concentration in the earth crust: 130 mg/kg Zirconium concentration in the sea water: 0, 026 micrograms/L
because of its warm climate and abundant sunshine.
Thorium is abundant than uranium in nature. It can be used to generate power.
It occurs in nature, as the "fifth most abundant chemical element in the universe by mass" [Wikipedia].
They don't have abundant natural resources
They don't have abundant Natural Resources
Hydrogen is one of the most abundant gasses it is natural