Here's why:
* Water is transparent: In black and white, you wouldn't see the water itself. You would only see what's reflected or refracted through it.
* Ripples are fleeting: The movement of water creates a shifting pattern of light and dark, making it difficult to isolate a "spot."
So how can you identify ripples in a black and white image?
* Look for changes in texture: Ripples can cause slight variations in the smoothness or roughness of the surface.
* Observe the reflection of light: Ripples can distort reflections, creating patterns that might be visible even in black and white.
* Analyze the contrast: Look for areas where the contrast between light and dark is changing rapidly, which could indicate a ripple.
Ultimately, finding ripples in a black and white image requires careful observation and an understanding of how light interacts with water. It might not be a specific "spot" but rather subtle visual cues that reveal the movement of the water.