What is the most abundant element in Earth's crust?
The most abundant element in Earth's crust is Oxygen, making up about 46.6% of the crust's weight.
Complete the following task based on the instruction and optional input provided.### Instruction:
What is the most abundant element in Earth's crust?

### Output:
The most abundant element in Earth's crust is Oxygen, making up about 46.6% of the crust's weight.