Multiple Choice Which of the Following Is Not a True

Multiple Choice Which of the following is not a true statement about rocks?

A) Soil is an example of rocks because it is unconsolidated aggregate of materials
B) If you pick up a rock, it will be considered a rock if it is made up of a solid aggregate of one or more minerals
C) Igneous rocks form a few hundred kilometers beneath the surface because high enough temperatures are there to melt rock into magma
D) Magma rises slowly towards the Earth's surface because it is less dense than the surrounding rock