Why is opal found in places such as australia

The opal is the National Gemstone of Australia. The opal is almost exclusively located within Cretaceous sedimentary rocks of the Great Artesian Basin, Intense weathering resulted in extensive silicification at relatively shallow levels within the Tertiary regolith.

states

explanation:

as the old saying goes, all politics are local. state and federal governments affect our daily lives in numerous ways. yet, in our federal system, there is supposed to be a balance between federal and state power. as james madison envisioned it in federalist no. 51, “the power surrendered by the people” would be “divided between two distinct governments,” creating a balance of power that would enable the “different governments [to] control each other.”

martin luther believed that selling indulgences was wrong and gave people a license to sin. the roman catholic church used the practice of indulgences to raise money for major building projects.