Hanna is comparing a rock from a riverbed and a rock deep from undergroung. one is very smooth, and the other has a very rough edges. explain why each rock was proabley found in that location
The rock in the riverbed is smooth because the water and sand have smoothed it over many years.
To understand why each rock was likely found in a specific location, we need to consider the process of rock formation and the environmental conditions under which they are found.
The smooth rock found in the riverbed is likely a result of water erosion and transportation. Over time, flowing water in rivers can carry and move rocks, rubbing them against one another and against the riverbed. As a result, the rough edges of the rock would get worn down, creating a smoother surface. So, the smooth rock was probably found in the riverbed because it has undergone years of erosion caused by the movement of water.
On the other hand, the rough-edged rock found deep underground is more likely a product of geological processes such as volcanic activity or tectonic movement. When rocks are subjected to high pressure, heat, and various chemical reactions beneath the Earth's surface, they can undergo physical and chemical changes. These processes can cause rocks to fracture and form rough surfaces. Therefore, the roughness of the underground rock suggests that it was formed deep within the Earth's crust or even deeper in the mantle, under intense conditions, and later brought closer to the surface through geological activities like uplift or volcanic eruptions.
In summary, the smooth rock found in the riverbed likely acquired its smoother surface through years of erosion by flowing water, while the rough-edged rock found deep underground is likely a result of geological processes like pressure, heat, and chemical reactions.