The rocks formed by the solidification of magma over the years are

Options

A. Igneous rocks
B. Sedimentary rocks
C. Metamorphic rocks
D. None of these

Answer

**Step-by-Step Solution:**

1. **Understanding the Formation of Rocks:**
- Rocks can be classified based on their formation processes. One of the primary processes involves the solidification of magma.

2. **Definition of Magma:**
- Magma is a molten rock material found beneath the Earth's surface. When magma cools and solidifies, it forms different types of rocks.

3. **Identifying the Type of Rock:**
- The rocks that form from the cooling and solidification of magma are specifically known as igneous rocks.

4. **Types of Igneous Rocks:**
- Igneous rocks can be further classified into two main categories:
- **Intrusive (or Plutonic) Igneous Rocks:** Formed from magma that cools slowly beneath the Earth's surface (e.g., granite).
- **Extrusive (or Volcanic) Igneous Rocks:** Formed from lava that cools quickly on the Earth's surface (e.g., basalt).

5. **Conclusion:**
- Therefore, the rocks formed by the solidification of magma over the years are called igneous rocks.

**Final Answer:** The rocks formed by the solidification of magma over the years are called igneous rocks.

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