Geology Quiz: Earth's Crust and Rock Formation

What is the meaning of 'litosfer' in the context of the Earth's crust?

• Inner core of the Earth

• Layer of the Earth's mantle

• Outermost layer of the Earth

• Layer of the Earth's atmosphere

What is the average thickness of the Earth's crust?

• 3000 km

• 500 km

• 7000 km

• 1200 km

Which elements dominate the composition of the Earth's crust?

• Oxygen, Silicon, Iron

• Oxygen, Silicon, Aluminum

• Hydrogen, Silicon, Iron

• Carbon, Silicon, Aluminum

What is the main characteristic of plutonic igneous rocks?

• They are formed deep within the Earth's crust

• They are formed from the accumulation of sedimentary particles

• They form from rapid cooling of magma on the Earth's surface

• They have a porphyritic structure

Which type of sedimentary rock is formed from the evaporation of seawater?

• Evaporite

• Coal

• Chert

• Limestone

What is the main process responsible for the formation of regional metamorphic rocks?

• Rapid cooling of magma

• Deformation and recrystallization due to high pressure and temperature

• Evaporation of seawater

• Deposition and compaction of sediments

Which mineral is a primary component of feldspar?

• Quartz

• Mica

• Hornblende

• Orthoclase

What is the main characteristic of olivine?

• It is a primary component of feldspar

• It is a dark-colored mineral

• It is a common mineral in sedimentary rocks

• It is formed from the evaporation of seawater

What is the primary role of zircon in rock formation?

• It is a secondary mineral formed from the alteration of biotite

• It is an accessory mineral formed by the crystallization of magma

• It is a common mineral in sedimentary rocks

• It is a primary component of feldspar

What is the main characteristic of hornblende?

• It is a dark-colored mineral

• It is a primary component of feldspar

• It is a light-colored mineral

• It is a common mineral in sedimentary rocks