What Makes an Ordinary Bar Magnet Magnetic

question 12

Multiple Choice

What makes an ordinary bar magnet magnetic?

• A)Electrons inside it are themselves tiny magnets.
• B)The magnetic fields of electrons in the magnet are aligned and add together.
• C)It contains magnetic charges.
• D)none of the above

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Definitions:

Ventral Body Cavities

The body's anterior (front) cavities, including the thoracic, abdominal, and pelvic cavities, housing major internal organs.

Serous

Relating to or producing a watery fluid, like that found lining certain cavities or as a component of blood serum.

Mucous

A thick, slippery substance produced by mucous membranes and glands to lubricate and protect certain parts of the body like the nasal passages and gastrointestinal tract.

Epithelium And Connective

These terms refer to two types of tissues; epithelium is a layer of cells covering the body surfaces or lining cavities, while connective tissue supports, binds, or separates other tissues and organs.