Fill in the following blanks with suitable words:
The water-bearing layer of the earth is called ….

Options

A. aquifer
B. infiltration
C. subsoil
D. None of the above

Answer

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks for the name of the water-bearing layer of the earth.

2. **Recall Relevant Information**: From the knowledge of geology and hydrology, we know that there are various layers of the earth, and one of them is specifically known for holding water.

3. **Define the Term**: The layer that holds water underground is known as an "aquifer." This layer can consist of various materials such as rock, sand, and silt, which help in filtering and purifying the water.

4. **Final Answer**: Therefore, the water-bearing layer of the earth is called an **aquifer**.

---