This is an argument, because Obama is striving to prove that America needs a new strategy for energy. In this argument he uses logos when he gives the audience specific statistics to support his point. He also uses pathos when he appeals to the emotions of the audience, the emotion of hope for a brighter and cleaner future.
Answer:
The word maleficent means causing harm especially by supernatural means, and we can determine this because the root 'mal' means evil as stated, and maleficent is a term used for evil occurences (specifically in movies and stuff)
Explanation:
So you can determine that the adjective describes something evil or bad because of the use of the root :) Sorry if this isn't specific enough, but it's quite straight forward to me at least so I don't know how to elaborate if you need a more formal answer
1. The race, therefore, was equally challenging to all the contestants.
2. Are you going to join us for tea, Mrs. Collins?
3. The rowers, of course, were exhausted after the three-hour race.