How many significant figures are in 54,060,000

4

Explanation:

Because you have 5406 before the rest are 0s which are not significant figures. If you had put a dot after the number, it would have 8 (i.e: 54060000.) which is another rule. But you don't so it only has 4 sigfigs.

h let me think

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).