Earth's Crust | MCQs

Explanation

Geology is the scientific study of the Earth's physical structure, composition, and processes.

Geology focuses on the Earth's crust, including its rocky parts, and explores its formation, transformation, and historical development.

Explanation

The mantle is crucial as it plays a key role in geological processes a such as plate tectonics, which affect earthquakes, volcanoes, and the formation of mountain ranges.

The structure of the earth is divided into four major components:

1. the crust,
2. the mantle,
3. the outer core,
4. the inner core.

Explanation

Iron is the second most abundant metal in the Earth's crust, after aluminum.

Iron is also the fourth most common element in the Earth's crust.

In its pure form, iron is a heavy, silvery, magnetic metal. 

Silicon is the second most abundant element in the Earth's crust, after oxygen