Which type of clouds typically do not cast shadows on the Earth?

Cirrocumulus clouds are high-altitude clouds that usually do not produce significant precipitation or dense shading on the ground. These clouds are characterized by their thin, wispy appearance and can often look like small, white patches or ripples in the sky. Because they are so high up, they are less dense and do not block sunlight effectively, which means they do not cast shadows on the Earth like thicker, lower clouds might.

In contrast, the other types of clouds mentioned tend to be denser and can produce shadows. For example, nimbostratus clouds are thick and can result in overcast skies, effectively blocking sunlight and casting shadows. Stratus clouds, while also generally flat and gray, are thick enough to create some shadowing effects. Cumulus clouds, known for their puffy, cotton-like shape, can also cast shadows, particularly when they are growing larger and taller.