TOEFL Reading: ETS-TOEFL阅读机经 - 314_E6413GIRAVE9L$

Select the TWO answer choices that are discussed in paragraph 4 as factors that explain why Mesolithic culture in Scandinavia developed differently from Mesolithic culture in other parts of Europe. To receive credit, you must choose TWO answers from the answer choices. A. Climate B. Population numbers C. To size of satellite camps D. The location of sites of human habitation