Earth's Geological Composition Quiz

Oxygen is the most abundant element in Earth's crust, comprising about 46.6% of its mass.

Igneous rocks form from the cooling and solidification of magma or lava, either beneath the Earth's surface or at its surface.

Metamorphic rocks are formed by the alteration of existing rocks through heat, pressure, or chemical processes, typically deep within the Earth's crust.

The Mesozoic era is known as the 'Age of Dinosaurs,' spanning from approximately 252 to 66 million years ago.

Calcite is the primary component of limestone, a sedimentary rock composed mostly of calcium carbonate.

A divergent boundary is the boundary between two tectonic plates that are moving apart from each other, often associated with the formation of new crust.

The inner core is primarily composed of solid iron and nickel, with temperatures reaching over 5,000 degrees Celsius.

Pyroxenes are the most abundant mineral group in the Earth's mantle, consisting of single-chain silicate minerals.

The Earth is approximately 4.6 billion years old, based on scientific estimates derived from radiometric dating of meteorites and rocks.

Potassium Feldspar is essential for plant growth and is a primary component of many fertilizers due to its potassium content.

Subduction is the process by which one tectonic plate moves beneath another due to differences in density, often resulting in volcanic activity and seismic events.

Weathering is the process by which rocks are broken down into smaller fragments through mechanical or chemical means, leading to erosion and sedimentation.

Pangaea was the supercontinent that existed during the Paleozoic and Mesozoic eras before it began to break apart approximately 175 million years ago.