Answer:
D) cooler than average global temperatures.
Step-by-step explanation:
A decrease in global distribution of temperate grasslands as a result of cooler temperature which is required by the temperate grasslands. these grasslands requires about 25-30 inches rainfall per year and the temperature ranges from 0 Fahrenheit in winter to 90 Fahrenheit in summer. The average temperature of the earth is 58 Fahrenheit so the temperature of the temperate grasslands goes lower than average global temperature which decrease its distribution.