Convection currents occur in the MANTLE. The mantle is the second layer of the earth after the crust. The mantle is approximately 2900 km thick. Convection currents are triggered or fueled by the heat from the Earth's core.
The part of the mantle closest to the core gets heated. It then becomes less dense than the layers above so it rises. When this rising plume interacts with the crust it cools and becomes more dense than the layers below and so it sinks and this circular motion continues to form convection currents.
Answer:
going through status determination processes and potentially being recognized as a refugee, individuals are legally protected by being granted legal documents that are issued from their country of asylum and are valid for a certain period of time, usually not less that one year at a time.
Explanation:
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Your question: Which of the earth's spheres includes its mantle core and crust?
Your answer: The geosphere includes its mantle, core and crust.
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Answer:
Explanation:
The refractive index of the suspected glass can be known by using the backe- line method. This process takes place in a petrographic microscope. In this method an oil comparable to the refractive index of the glass is used. At a point when the refractive index of the glass becomes equal to that of the oil in which it is immersed the yellow line under the observation of the plane polarized light gets disappeared. This method can be used to identify the refractive index of the suspect glass and comparing it with the source of origin or sample glass.
Answer:
A. Belize
B. Caribbean Sea
C. Panama
D. Costa Rica
E. El Salvador
F. Nicaragua
G. Guatemala
H. Honduras
Explanation:
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