Give the harmful effects of below substances on human health.
Oxides of sulphur and nitrogen

Explanation

### Step-by-Step Solution:

1. **Identify the Substances**: The substances in question are oxides of sulfur and nitrogen. These include sulfur dioxide (SO₂) and nitrogen oxides (NOx).

2. **Inhalation Effects**: When these oxides are inhaled, they can lead to various respiratory issues.

3. **Constant Coughing**: One of the immediate effects of inhaling these substances is constant coughing. This occurs as the body tries to clear the irritants from the respiratory tract.

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