Two spheres A and B, each of volume `100 "cm"^3` are placed on water (density = `1.0 "g cm"^(-3)`). The sphere A is made of wood of density `0.3 "g cm"^(-3)` and the sphere B is made of iron of density `8.9 "g cm"^(-3)` .
which sphere will float? Give reason.

Explanation

To determine which sphere will float, we need to compare the densities of the spheres with the density of water.

### Step-by-Step Solution:

1. **Identify the densities:**
- Density of water = \(1.0 \, \text{g/cm}^3\)
- Density of sphere A (wood) = \(0.3 \, \text{g/cm}^3\)
- Density of sphere B (iron) = \(8.9 \, \text{g/cm}^3\)
...