Which phrase describes the equator? is a line of longitude
is situated at 0 degrees
connects the North and South Poles
separates the Eastern and Western Hemispheres

b) is situated at 0 degrees

Explanation:

the equator is the latitude and it is like a rule in an equal-area map, when you put it horizontally at the center of the earth the rule is at 0 degrees but if you put it vertically at the center it is 90 degrees

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ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called