When the liquid metal that creates the outer core of the earth passes through a magnetic field, it begins to carry the electric current through the liquid. This current makes its own, much stronger magnetic field.
Answer: cancer
Explanation: I am a scientist
The answer is A. a light wave
C and D both need water as a medium and sound needs air to vibrate in order to travel. light, on the other hand, does not need a medium
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Chemicals produced by bacteria that limit the growth of other bacteria are called antibiotics.
