Diorite is an igneous rock that forms when magma cools slowly underneath the Earth's surface. Basalt is an igneous rock that forms when lava cools quickly on the Earth's surface.A geologist has collected the two rock samples shown in the photo: Rock A and Rock B. Explain which rock is diorite and which is basalt. Use observations to support your answer.

A geologist has collected the two rock samples shown in the photo: Rock A and Rock B. Explain which rock is diorite and which is basalt. Use observations to support your answer.

Intrusive igneous rocks form from magma which has cooled and solidifiedslowly on Earth's surfacequickly on Earth's surfacequickly below Earth's surfaceslowly below Earth's surface

Extrusive igneous rocks form from lava which has cooled and solidifiedquickly, deep undergroundquickly, on Earth's surfaceslowly, on Earth's surfaceslowly, deep underground

Extrusive rocksGroup of answer choicesare generally made up of large mineralsare made up of precipitatesare also called volcanicform deep under volcanoes

What can you tell about an igneous rock that has a fine texture?A.It is most likely extrusive.B.It probably formed underground.C.It is a silicate.D.It formed because of an earthquake