Answer the question using the accompanying figure. According to the graph, which biomes are defined by a mean

annual precipitation under 50 cm?



a. tropical forest, desert, and savanna
b. temperate deciduous forest, savanna, and tropical forest
c. boreal forest, temperate deciduous forest, and tundra
d. desert, tundra, and chaparral
e. desert, tundra, and grassland


ANSWER: d

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