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.
Incomplete question. However, I assumed you are referring to former U.S President Jimmy Carter.
<u>Explanation:</u>
Many political analysts believe that among the major troubles faced by Carter included:
- the threat of rising inflation rate in the country at the time,
- increase in the rate of unemployment.
It has been said that solving this was difficult for him because of the rising criticism of some of his foreign and domestic policy.
Answer:the Southern states' desire to preserve the institution of slavery.
Explanation:
The Nile River shows the farthest extant of Alexander's Conquests.
Hope I helped. :)
The Atlantic slave trade was so harmful to African nations because Africa missed out on generations of economic, cultural, and political development.
