What kinds of bonds make up a formula unit of sodium chloride? a.

Ionic bonds

b.

Covalent bonds

c.

1 ionic bond and 1 covalent bond

d.

Van der Waals forces

Jet streams are relatively narrow bands of strong wind in the upper levels of the atmosphere. the winds blow from west to east in jet streams but the flow often shifts to the north and south. jet streams follow the boundaries between hot and cold air. the earth's rotation is responsible for the jet stream as well.

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