If you put a compass by a wire with current flowing through it, the compass needle would
a. be deflected.
b. not move at all.
c. reverse its polarity.
d. spin around and around.

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Since wxyz is 4, halfof that would be 2.

Did you know it's illegal to own only one guinea pig in switzerland?   : )

Magma forms by partial melting of upper mantle and crust. partial melt means that only a fraction of the available material forms a melt, and that the remainder stays solid. the partial melt rises because of its lower density and ascends through he crust. this is so conclusive mean the answer would be magma igneous rocks or balistic magma.