Does hydrogen support combustion ?

Explanation

### Step-by-Step Solution:

1. **Understanding Combustion**:
- Combustion is defined as a spontaneous reaction between a substance and oxygen (O2) that produces heat and light. The general formula for combustion involves a fuel reacting with oxygen to produce products such as carbon dioxide (CO2) and water (H2O).

2. **Identifying the Role of Oxygen**:
- Oxygen is the key reactant that supports combustion. In combustion reactions, the fuel (which can be hydrocarbons like carbon or hydrogen) reacts with oxygen to release energy.

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