The causes of this horrible disease (are / is) poor diet and lack of exercise. » “Of this horrible disease” is a prepositional phrase. Eliminate it and we are left with "The causes,” a plural noun. Now, would we say “The causes is” or “The causes are?”

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

Which tense allows for an event that began in the past to carry into the present moment in time

Whats the importance of gaining a general understanding of and interpretation of the work of literature. explain what the importance is to me