Which of the following is true about savannas?
A - On a per-acre basis, they contain the largest biomass of any biome on Earth
B - They get less than twelve inches of rain per year
C - They are tropical grasslands
D - They are the most productive biome on Earth
E - They are grasslands interspersed with trees that occur in temperature and tropical climates
Answer: E - They are grasslands interspersed with trees that occur in temperature and tropical climates