The inner most layer of earth is called?

Options

A. core
B. crust
C. mantle
D. lithosphere

Explanation

**Step-by-Step Text Solution:**

1. **Understanding Earth's Structure**: The Earth is composed of several layers, each with distinct characteristics. The main layers are the crust, mantle, outer core, and inner core.

2. **Identifying the Innermost Layer**: Among these layers, the innermost layer is located at the center of the Earth.

3. **Characteristics of the Inner Core**: The inner core is primarily made up of iron and nickel. It is solid due to the immense pressure at this depth, despite the high temperatures that can reach up to 5,700 degrees Celsius (10,300 degrees Fahrenheit).

4. **Conclusion**: Therefore, the innermost layer of the Earth is called the **inner core**.

**Final Answer**: The inner most layer of Earth is called the **inner core**.

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