Name the most abundant element present in earth's crust.

Options

A. O
B. Se
C. S
D. Te

Answer

To answer the question, "Name the most abundant element present in Earth's crust," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Earth's Crust Composition**:
- The Earth's crust is made up of various elements, and we need to identify which one is the most abundant.

2. **Identifying Key Elements**:
- The most significant elements found in the Earth's crust include oxygen, silicon, aluminum, iron, calcium, sodium, potassium, and magnesium.

3. **Analyzing Abundance**:
- Among these elements, oxygen is the most prevalent. It constitutes about 49.5% of the Earth's crust by mass.
- Silicon follows as the second most abundant element, making up approximately 28% of the crust.
- Other elements like aluminum account for around 8%.

4. **Conclusion**:
- Based on the analysis, the most abundant element in the Earth's crust is oxygen.

### Final Answer:
The most abundant element present in Earth's crust is **Oxygen**.

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