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<em>Hello, Combustion occurs when fossil fuels are burned, and the elements in the fossil fuels oxidize, or combine with oxygen. When coal is burned, the carbon oxidizes to form carbon dioxide, or CO2. Hope That Helps!</em>
<em>From SusieLouielove.</em>
Answer:
bc geocentric is the sun revolving around the earth while heliocentric is the earth revolving around the sun
For humans, population density is the number of people per unit of area, usually quoted per square kilometer or square mile (which may include or exclude, for example, areas of water or glaciers). Commonly this may be calculated for a county, city, country, another territory or the entire world.
Job Duties. A wildlife conservationist<span> protects and manages various environments, such as forests and grasslands, to ensure that they're safe for the species and plants that live and grow there. This involves making sure habitats are free from diseases and harmful insects, as well as working to protect them from fire.
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B. The Sahar desert. The people from the south east of the continent migrated to other parts of Africa but not north Africa because the Sahara was in their way. This led to the ottomans to easily lay claim to North Africa and develop a Islamic and Arabic like culture.
