What is the mineral property in which a mineral, when broken, will break into piece with smooth, regular planes?

What is the mineral property in which a mineral, when broken, will break into pieces with rough, jagged edges?

What is a term used to describe metamorphic rocks which contain visible elongated bands?

What is the type of rock that is formed from the melting and cooling of rock material?

What is the type of rock that is formed when sediment is compacted and cemented together over time; tends to form in layers?

What is the type of rock that is formed when heat and pressure (though not enough to completely melt the rock) is applied to an existing rock?

What are Large and broad; release fast-moving, less gassy and relatively non-explosive eruptions?

What are smallest and most common; explosive eruptions that release small pieces of lava and ash into the air. They often form on the side of other volcanoes?

What are also known as stratovolcanoes; they have explosive eruptions with more gas and lava. They are formed from layers of lava and ash?

What is a relatively short unit of geological time?

What is the theory that the continents have slowly moved away from each other because of the movement of the tectonic plates?

a theory explaining the structure of the earth's crust as the interaction of rigid lithospheric plates that move slowly over the mantle.

the relativity small surface layer of the earth

the layer of the earth underneath the crust which can be described as partially solid and partially liquid and moves in a constant convection current

the layer of the earth below the mantle which is made of molten (liquid) metal

the layer of the earth's center which is made of very dense, solid metal.

the crust and upper (solid part) of the mantle

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