Answer:
Oxygen, Silicon, Aluminum, and Iron.
Step-by-step explanation:
Oxygen is the most abundant element, making up approximately 46% of the Earth's crust. It is a key component of minerals, rocks, and water.
Silicon is the second most abundant element, comprising around 28% of the Earth's crust. It is a major component of many minerals, including quartz and various silicate minerals.
Aluminum is the third most abundant element, constituting about 8% of the Earth's crust. It is commonly found in minerals such as bauxite and plays a crucial role in various industrial applications.
Iron is the fourth most abundant element, making up about 5% of the Earth's crust. It is a vital element in the formation of minerals like hematite and magnetite and is widely used in construction and manufacturing.
It's important to note that these percentages represent the abundance of elements in the Earth's crust and may differ in other contexts, such as the human body or the entire Earth's composition.