Answer:
Silicate-Oxygen tetrahedro
Explanation:
Silicate-Oxygen tetrahedro are the most abundant and basic structure of common minerals.
These are silicate minerals which formed to silicate rock forming mineral. These constitute about 90% of earth crust. Silica SiO2 consider as most common mineral on the surface of earth also known as Quartz. The the most andundant element in the earth crust is oxygen, mainly found in combine form.
I think the answer is A.
But correct me if I’m wrong
I hope this helps :)
In rain storms methane gases into carbon, as it falls it turns into pieces of graphite and then into diamonds.
Answer:
A Black Loyalist was a person of African descent who sided with the Loyalists during the American Revolutionary War. In particular, the term refers to men who escaped the enslavement of Patriot masters and served on the Loyalist side because of the Crown's promises of freedom.
Some 3,000 Black Loyalists were evacuated from New York to Nova Scotia; they were individually listed in the Book of Negroes as the British gave them certificates of freedom and arranged for transport. The Crown gave them land grants and supplies to help them resettle in Nova Scotia. Some of the European Loyalists who emigrated to Nova Scotia brought their slaves with them, making for an uneasy society. One historian has argued that those slaves should not be regarded as Loyalists, as they had no choice in their fates. Other Black Loyalists were evacuated to London or the Caribbean colonies.
Thousands of African slaves escaped from plantations and fled to British lines, especially after British occupation of Charleston, South Carolina. When the British evacuated, they took many former slaves with them. Many ended up among London's Black Poor, with 4,000 resettled by the Sierra Leone Company to Freetown in Africa in 1787. Five years later, another 1,192 Black Loyalists from Nova Scotia chose to emigrate to Sierra Leone, becoming known as the Nova Scotian settlers in the new British colony of Sierra Leone. Both waves of settlers became part of the Sierra Leone Creole people and the founders of the nation of Sierra Leone. Thomas Jefferson referred to the Black Loyalists as "the fugitives from these States". While most Black Loyalists gained freedom, some did not. Those who were recaptured by slave traders were sold back into slavery and treated harshly for having served under the British.
