determine the difference between intrusive and extrusive igneous rocks
Intrusive igneous rocks form from molten rock, or magma, that solidifies beneath the Earth's surface. As the magma cools slowly underground, larger mineral grains have time to form, resulting in a coarse-grained texture. Examples of intrusive igneous rocks include granite and diorite.
Extrusive igneous rocks, on the other hand, form from magma that solidifies on the Earth's surface. This rapid cooling process does not allow for large mineral grains to form, resulting in a fine-grained or glassy texture. Examples of extrusive igneous rocks include basalt and rhyolite.
In summary, the main difference between intrusive and extrusive igneous rocks is the location where they form and the resulting texture of the rocks. Intrusive rocks form below the surface with a coarse-grained texture, while extrusive rocks form on the surface with a fine-grained or glassy texture.
A)A student wants to describe the texture of a rock. Which of these statements might the student use?(1 point)
Responses
The rock is six centimeters across.
The rock is six centimeters across.
The rock is oval like an egg.
The rock is oval like an egg.
The rock is grey with a white stripe.
The rock is grey with a white stripe.
The rock has many pores.