Which river is located in Africa and is the world's longest river, at 4.160 miles? A. the Amazon River B. the Congo River C. the Niger River D. the Nile River​

Does anyone know the answers for these

Which revelation resulted from the observation of the spectrum of different galaxies? a. there were more galaxies whose spectrum was blueshifted b. there were no galaxies whose spectrum was redshifted c. there were more galaxies whose spectrum was redshifted d. there were no galaxies whose spectrum was blueshifted

The middle east links which two continents? ●asia and europe●europ and africa●africa and asia●africa and australia