Answer:
B. Aerobic bottom water
D. High organic productivity in the overlying oxygen rich water
Explanation:
A Shale is a sedimentary rock usually formed from silt and clay-size mineral. There are different colors of Shale. The Black Shale is formed under anaerobic conditions. This means that oxygen is deficient in the water where the Shale forms.
A little amount of organic materials is required for the formation of Black Shale and because Black Shale is formed in an environment lacking oxygen, an oxygen-rich water would not be necessary for its growth. Sediments are necessary in the formation of Black Shale.
Answer:
Para que ningún acto o actividad que se lleve a cabo mientras el tratado se halle en vigencia constituirá fundamento para hacer valer, apoyar o negar una reclamación de soberanía territorial en la Antártida, ni para crear derechos de soberanía en esa región.
Explanation:
Answer:
Explanation:
The three main rock types are igneous, metamorphic and sedimentary. The three processes that change one rock to another are crystallization, metamorphism, and erosion and sedimentation. Any rock can transform into any other rock by passing through one or more of these processes. This creates the rock cycle.
Answer:
Places around Cairo and Aswan are the largest concentrations of people in the region.
Explanation:
Concentration means how spread out things are in space. They could either be clustered or dispered. The purple on this map represents clustered, and as you can see, that Cairo is the largest city and the capital of Egypt, which is one reason why it has the largest concentrations of people.
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.
