Explain the following:
The panels of a solar water heater are kept slanting.

Explanation

### Step-by-Step Solution:

1. **Understanding Solar Water Heaters**:
- Solar water heaters are devices that use solar energy to heat water. They consist of panels that absorb sunlight and convert it into heat.

2. **Positioning of Panels**:
- The panels of a solar water heater are kept slanting or inclined rather than flat. This inclination is crucial for maximizing the absorption of solar radiation.

...