_________ glass is used as wind shields of automobiles.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the type of glass used in the windshields of automobiles.

2. **Identifying the Glass Type**: The glass used for windshields is a special type that is designed for safety and durability.

3. **Describing the Structure**: This glass is often referred to as "sandwich glass." The term "sandwich" indicates that it consists of two layers of glass with a layer of material (usually plastic or air) in between.

4. **Explaining the Functionality**: The air or plastic layer in between the two glass layers provides high tensile strength, making the glass resistant to breaking, which is essential for withstanding bad weather and air pressure differences.

5. **Alternative Name**: This type of glass is also known as "laminated glass." Both terms can be used interchangeably.

6. **Final Answer**: Therefore, the answer to the question is: **Sandwich glass** or **Laminated glass**.

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