Question
General Geology
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please correct for me the right answer
35. Heat-transfer melting occurs when The temperature of region increases but the pressure stays the same b The pressure of a region decreases but the temperature stays the same c. Both temperature and pressure stay the same but water is added 36. Tectonic plates consist of: a. Crust only lb. Crust and mantle e Crust and lithospheric mantle d. As thenospheric mantle only 37. By which processes can a silicic magma be produced? a partial melting b. Fairies make it happen c. Fractional crystallization d, A & C 38. In fractional crystallization, why do mafic (Fe-Mg-rich) minerals crystallize first? a. They are more dense than silicic minerals They have higher crystallization temperatures than silicic minerals c. They have more silica than silicic minerals 39. A DIKE: a. Is an igneous intrusion b, Pushes between layers of rock c. Is irregular or blob-shaped nd Is all of the above. 40. Which of the layers of the Earth are brittle? Asthenospheric Mantle b. Crust c. Lithospheric Mantle 41. Magmas with high viscosity: a. Are more likely to cause explosive eruptions b. Are silicic in composition c, Form dome-shaped flows d. All of the above
Explanation / Answer
Answer for question number 35
Answer is
(a)The temperature of a region increases but the pressure stays the same.
If temperature increases then melting occur, when pressure decreases then the melting point of rocks will be decreases, so less pressure region easily can melt than higher pressure region.
