13 According to the passage, which of the following effects is NOT mentioned as a consequence of a volcanic eruption? (A) Fracture of the earth plate (B) Turbulence in the air (C) Extreme lack of food (D) Destructive tidal waves

9 According to this passage, which of the following statements is true? (A) Vegetables could be distinguished from medical herbs easily in the Middle Ages. (B) De Materia Medica taught farmers how to grow vegetables and herbs. (C) Dioscorides’ work was considered the definite authority on pharmacy. (D) Dioscorides studied botany in the 1st century.

13 According to the passage, which of the following effects is NOT mentioned as a consequence of a volcanic eruption?
(A) Fracture of the earth plate
(B) Turbulence in the air
(C) Extreme lack of food
(D) Destructive tidal waves

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