Violet, whose fair complexion makes her prone to sunburns, always wears sunscreen for protection against the sun's harmful ultraviolet rays. Compound complex or simple

Compound-complex (I believe)

Explanation:

There's a part of that sentence you do not need, the 'whose fair complexion makes her prone to sunburns'. If you took that out, you would still have a complete sentence. So I think it would be compound complex.

active voice: my father cut the tree.

passive voice: the tree was cut by my father.

active voice: people buy newspapers every day.

passive voice: newspapers are bought (by people) every day.

active voice: people have been using movies as political propaganda since world war ii.

passive voice: movies have been used as political propaganda since world war ii.

active voice: donna gave me my birthday present.

passive voice: i was given my birthday present (by donna). / my birthday present was given to me (by donna).

active voice: mom will leave the keys on the counter.

passive voice: the keys will be left (by mom) on the counter.

the words in parentheses are the agent of the passive voice and can be omitted when obvious, generic, or simply unnecessary.

the tree invited all its friends to its lumber party. the party was at saruman's tower in isengard because saruman had killed some trees