Answer:
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.
By the Nuetrality acts. These acts made it illegal to sell arms to belligerent nations, or nations at war.
D. He created rules for his colony
