Answer:The rocks are smooth due to the water eroding the rocks.
Explanation:
The water slowly takes off minerals of the rocks every time is splashes over them. Over time the rocks bumpy surface would be eroded away giving it a smoother surface.
b:failure of pituitary gland to secrete ADH .caauses diabetes inspidus.
c:located at the kidney.cortex dark in colour and its the outermost.medulla red in colour and lies at the centre.
C. Upward; downward. As the hot rock rises, cooler rock flows downward to take its place next to the core, where it is heated and becomes buoyant enough to rise again later
Answer:
phototropism only happens after plants move from darkness into the light (false)
