half of the heat produced by the Earth's core is:
D. The decay of radioactive elements
<h2>Further Explanation
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Geothermal energy is heat energy that is contained and formed in the bowels of the earth. geothermal energy comes from technological activities that exist in the earth that have occurred since the earth was created. Besides, geothermal heat also comes from sunlight that is absorbed by the earth's surface. In addition to the heat sources mentioned earlier, geothermal is thought to originate from the following phenomena:
- the decay of radioactive elements below the earth's surface.
- electromagnetic effects that are influenced by magnetic fields that exist on earth.
- the heat released by heavy metals due to sinking into the center of the earth.
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Grade: Middle School
Subject: Biology
keyword: geothermal, heat produced by the earth
The disease is mainly caused by a lack of a slippery substance in the lungs called surfactant. This substance helps the lungs fill with air and keeps the air sacs from deflating. Surfactant is present when the lungs are fully developed.
https://medlineplus.gov/ency/article/001563.htm
The answer is Hydroxyl and Carbonyl Groups
Es un saco con paredes finas que rodea al feto durante el embarazo. El saco contiene líquido amniótico (líquido producido por el feto) y el amnios (membrana que cubre el lado fetal de la placenta), que proteje al feto de lesiones y ayuda a regular su temperatura.
Long term and short term hair loss, weakness, tiredness. ☆