A. is the answer for this
Answer:
On Earth, flowing of liquid metal in the outer core of the planet generates electric currents. The rotation of Earth on its axis causes these electric currents to form a magnetic field which extends around the planet. The magnetic field is extremely important to sustaining life on Earth.
Explanation:
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<span>If you mean having the same units used for measurement then it would be for the purpose of having an easier, faster and efficient understanding and communication of data in the scientific community.</span>
No it is not. it is only found in animal products.
