What is a primary function of fiber-optic cables?

magnifying distant images
cutting through metals
carrying signals at high speeds
performing high-precision surgery

Explanation:

Carrying signals at high speeds

Fiber optics (optical fibers) are large, thin strands of extremely pure glass about the breadth of a human hair. They are organized in packages described as optical cables which are utilized to transfer light signals over long distances. Moreover, Fiber optic Internet transfers data faster than  any ordinary cable.

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Carrying signals at high speeds

Fiber optics (optical fibers) are large, thin strands of extremely pure glass about the breadth of a human hair. They are organized in packages described as optical cables which are utilized to transfer light signals over long distances. Moreover, Fiber optic Internet transfers data faster than  any ordinary cable.

explanation:

considering the bohr theory, the type of connection that requires the transfer the answer conuldn't be right

answer;

d. are made mostly of liquid

explanation;

-the general   composition and structure planets includes; they have a thick gas and liquid layer covering a small,solid core. mostly the gases are hydrogen and helium atmosphere and layers of liquid hydrogen. for instance neptune and uranus are examples of the outer planets, they have a core covered by ice and ammonia.

-neptune's atmosphere is hydrogen and helium with a bit of methane so there is no oxygen to breath and the interior is made up of frozen water and ammonia with a rock and iron core. thus, there is no liquid water or solid surface to survive.