From hydrogen, sodium, zinc and argon select
Element which reacts with steam.

Explanation

To determine which element among hydrogen, sodium, zinc, and argon reacts with steam, we can follow these steps:

### Step 1: Understand the Reactivity of the Elements
- **Hydrogen (H)**: It is a non-metal and does not react with steam.
- **Sodium (Na)**: A highly reactive metal that reacts vigorously with water, including steam.
- **Zinc (Zn)**: A moderate metal that does not react with cold water but can react with steam.
- **Argon (Ar)**: A noble gas that is inert and does not react with steam.

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