Name the gaseous inputs of the Haber process and state the ratio by volume in which the gases are mixed.

Explanation

### Step-by-Step Solution:

1. **Identify the Gaseous Inputs**: The Haber process is primarily used for the synthesis of ammonia (NH₃). The gaseous inputs required for this process are nitrogen (N₂) and hydrogen (H₂).

2. **Write the Chemical Reaction**: The chemical reaction for the formation of ammonia from nitrogen and hydrogen can be represented as:
\[ N_2(g) + H_2(g) \rightarrow NH_3(g) \]
...