Hydrothermal Vents occur along divergent plate boundaries on the ocean floor. Hydrothermal vent systems give off plumes of hot, mineral-laden water with temperatures as high as 350 degrees Celcius. The water is ejected through a spout known as black smokers. Metal-rich minerals precipitate out of the circling sea water and forms ores of copper, zinc and iron.
Answer:
it depends on the angle made by lines AB and BC
The wind blows around the sand so no one grain of sand stays in the same place forever. The winds molds the sand dunes for a very short time
Answer:
I think it is D i am 55% sure
