Question
Which of the following statements is true?
Extrusive rocks form when magma cools deep below Earth's surface.
Rocks with crystals larger than 1/2 mm have a fine texture.
The crust beneath Earth's oceans is made of granite.
Rocks that solidify at high temperatures have high levels of iron (Fe).
Extrusive rocks form when magma cools deep below Earth's surface.
Rocks with crystals larger than 1/2 mm have a fine texture.
The crust beneath Earth's oceans is made of granite.
Rocks that solidify at high temperatures have high levels of iron (Fe).
Answers
GPT-4o mini
The true statement among the options provided is:
"Rocks that solidify at high temperatures have high levels of iron (Fe)."
To clarify the other statements:
- Extrusive rocks form when magma cools quickly at or near Earth's surface, not deep below the surface (that would be intrusive rocks).
- Rocks with crystals larger than 1/2 mm typically have a coarse texture, not a fine texture.
- The crust beneath Earth's oceans is primarily made of basalt, not granite. Granite is typically found in continental crust.
"Rocks that solidify at high temperatures have high levels of iron (Fe)."
To clarify the other statements:
- Extrusive rocks form when magma cools quickly at or near Earth's surface, not deep below the surface (that would be intrusive rocks).
- Rocks with crystals larger than 1/2 mm typically have a coarse texture, not a fine texture.
- The crust beneath Earth's oceans is primarily made of basalt, not granite. Granite is typically found in continental crust.