The density of a substance in `"0.9g/cm"^3`
Find its density in SI units.

Explanation

To convert the density of a substance from grams per cubic centimeter to kilograms per cubic meter, we can follow these steps:

### Step 1: Understand the given density
The density of the substance is given as \(0.9 \, \text{g/cm}^3\).

### Step 2: Identify the conversion factors
1. **Convert grams to kilograms**:
- \(1 \, \text{g} = \frac{1}{1000} \, \text{kg}\)
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