Which of the following topics are too general? music
a shark's diet
Earth
characteristics of birds
Olympic gymnastics training - a day in the life
what to expect on an African safari

Earth and Music

Explanation: I believe this because there are many subjects within these topics. While all the other topics are fairly basic and don’t have many subjects within them.

i believe the answer is: a.  abstract forms were often used to represent human figures.

representing human figures in abstract forms is often used in the geometric period, not hellenistic  period.   during the hellenistic  period,   aesthetic value derived from creating arts which mimic the actual shape of a certain object or individuals.

hope this ! < 3