Summer rains and bad weather in europe in the early fourteenth century resulted in __

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Which statement is correct? the speed of the light ray is the same in air and medium a. the speed of the light ray is the same in air and medium b. medium a and medium b have different densities because light refracts at different angles. medium a and medium b have the same density because the light ray strikes both at the same angle.

Barbara is a 50-year-old accountant, wears conservative clothes, and plays bingo every tuesday night at the church social. it is not the case, therefore, that barbara likes heavy metal music. this argument is