Question

Select the choice that best completes the following sentence: A _______ is made up of one or more _______.

Answer 1

A Rock is made up of one or more minerals

Explanation:

Rocks are natural substances often made up of one or combination of various other minerals held together in a closed crystalline matrix. These minerals provide the rock with its characteristic feature.

E.g.- Earth is also made up of several types of rocks such as Granite, Gabbro, etc.  Basalt is another commonly found rock in the Earth’s oceanic crust. It is formed due to the solidification of the molten magma coming from the partially molten Aesthenosphere. It is formed mainly of two other minerals viz. Plagioclase and Pyroxene

Thus, Basalt-             Plagioclase + Pyroxene

         (rock type)-      (mineral)     + (mineral)