Answer: I can't see the sentence but detractor means someone who disparages or belittles the worth something.
The antagonist usually brings the plot conflict to the protagonist resolution.
The correct answer is b. al, mg, li
That's because Cobalt is not a representative element since it's not found in the first 2 or the last 6 groups.
I do not know what your question is but if you are asking what is it then it could be a pipe under water that is dripping at a constant rate underwater which is why you only find it while wearing scuba gear.
By providing the employee with opportunities to socialize with co-workers