At which location in earth's interior exhibits a change in
the trend?
inner core
outer core
lower mantle
upper mantle

Convection powers the motion of the molten outer core. The hot liquid from deep inside rises toward the cooler top of the core. The movement transfers heat upward and causes a convective flow. Cooler liquid from near the core-mantle boundary sinks downward and thus also helps to power the convection.the outer core

Explanation:

it should be p1 v1 = p2 v2

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