Which element makes up the largest approximate percentage by mass among the Earth's summarized physical components?
Answer
Iron
Iron is the component listed with the highest approximate percentage by mass at 32.1% and is noted as a key component of the core responsible for the magnetic field.

Related Questions
What are the two primary gases composing Earth's atmosphere by percentage?What approximate percentage of Earth's surface is covered by water?What is the Earth's approximate average distance from the Sun in miles?What is the main function of the magnetic field generated by the Earth's core layers?Which element makes up the largest approximate percentage by mass among the Earth's summarized physical components?What crucial long-term habitability role is served by geological activity like plate tectonics?What is the approximate diameter of the Earth in kilometers?How are ecosystem services defined that include tangible extracted products like fresh water and medicinal resources?What is the primary consequence of Earth being located within the Sun's habitable zone?What is the estimated total mass of the Earth?Philosophically, what concept captures the Earth's unique role as the only known context for human experience and meaning?