What types of goods were introduced to Europe from America?

What the answer too y=7-2x when x is 4

Compare green and red light from the visible spectrum. which has: the longer wavelength? the greater frequency? the greater energy?

What statement describes the effect that the 13th amendment had on american society

Which word is most nearly opposite in meaning to ominous? a. heartening b. threatening c. honest d. devious

Tree a lived for 6 decades and 5 years. Tree b lived for 58 years. Which tree lived longer