Question

question 1 (2 points)
listen
rocks must be made of minerals and no other material.
true
false
question 2 (2 points)
listen
according to this diagram igneous rocks can be melted.
true
false

Explanation:

• Question 1: Rocks can be composed of minerals, but they can also contain organic matter (in the case of some sedimentary rocks like coal - which is formed from plant material) or glass (in the case of some igneous rocks like obsidian). So, the statement "Rocks must be made of minerals and no other material" is incorrect.
• Question 2: In the rock cycle diagram, we can see that igneous rocks can be melted to form magma. This is a key part of the rock - cycle concept where rocks of one type (igneous, sedimentary, or metamorphic) can be transformed into another type through processes like melting, crystallization, erosion, sedimentation, and metamorphism.

Answer:

• Question 1: B. False
• Question 2: A. True