Basaltic or mafic magma (Hawaiian lava for example) forms as the result of the partial melting of

a) oceanic crust
b) continental crust
c) asthenosphere
d) outer core
e) inner core


Ans: c) asthenosphere

Environmental & Atmospheric Sciences

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Figure 9-2: Earth–Sun relations on June solstice.

Noting the orientation of the circle of illumination on June 21, explain the above question.

What will be an ideal response?

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