What does Devil’s Tower indicate about Earth’s surface?(1 point)
Responses
It is a formation of igneous rock that indicates the current presence of molten magma.
It is a formation of igneous rock that indicates the current presence of molten magma.
It is a formation of igneous rock that indicates the past presence of molten magma.
It is a formation of igneous rock that indicates the past presence of molten magma.
It is a formation of sedimentary rock that indicates the current presence of molten magma.
It is a formation of sedimentary rock that indicates the current presence of molten magma.
It is a formation of sedimentary rock that indicates the past presence of molten magma.
It is a formation of igneous rock that indicates the past presence of molten magma.
Devil's Tower is a formation of igneous rock that indicates the past presence of molten magma.
To determine the correct answer, we need to understand what Devil’s Tower is and what it indicates about Earth’s surface.
Devil’s Tower is a geological feature located in Wyoming, USA. It is a prominent rock formation that rises 386 meters (1,267 feet) above the surrounding landscape and is considered a sacred site by Native American tribes. The tower itself is composed of igneous rock, specifically phonolite porphyry.
Now, let’s analyze the given options to find the correct answer:
1. "It is a formation of igneous rock that indicates the current presence of molten magma." - This option suggests that Devil’s Tower indicates the current presence of molten magma. However, this is not accurate. Devil's Tower was formed by the cooling and solidification of magma that was once present, but it does not indicate the current presence of molten magma.
2. "It is a formation of igneous rock that indicates the past presence of molten magma." - This option correctly states that Devil’s Tower is a formation of igneous rock, and it indicates the past presence of molten magma. As mentioned earlier, Devil’s Tower was formed when magma cooled and solidified underground, and erosion later exposed the tower-like structure.
3. "It is a formation of sedimentary rock that indicates the current presence of molten magma." - This option is incorrect because Devil’s Tower is composed of igneous rock, not sedimentary rock.
4. "It is a formation of sedimentary rock that indicates the past presence of molten magma." - This option is also incorrect because Devil’s Tower is composed of igneous rock, not sedimentary rock.
Based on the analysis above, the correct answer is:
- It is a formation of igneous rock that indicates the past presence of molten magma. (Option 2)