Is this a compound, complex, or compound-complex sentance? The threat of the clappers is so effective because no one knows what they really stand for.

Which two principles form the basis for capitalism?

Which of these can an adverbial clause modify?

Which of the following is not a fire safety precaution a; start fires with kindling or other fire starters b: check local regulations and conditions before starting a fire c: clear flammable debris away from fire area d: extinguish all burning embers before leaving