The great Rift Valley in Africa is a land feature on earths surface caused by the movement of crystal plates. Continued movement of the plates is gradually making the rift deeper. How are the plates around the great Rift Valley moving?

18. how do the cells in meiosis differ from the cells in mitosis?

Can happen anywhere along the spine if the neural tube does not close all the way. the backbone that protects the spinal cord does not form and close as it should. this often results in damage to the spinal cord and nerves. a) cleft palate b) spina bifida c) encephalocele d) down's syndrome

Dr. arenas is a scientist who has been trying to determine if increasing pressure will increase the sound that occurs when two chemicals explode. it measures the volume of the sound that occurs at the minimum pressure at which the explosion will occur. it then increases the pressure and measures the volume of the explosions that occur. what kind of investigation is the scientist conducting?