Which type of cloud is characterized by layers and may bring steady precipitation?

The type of cloud characterized by layers and known for bringing steady precipitation is the stratus cloud. Stratus clouds form in uniform, horizontal layers that can cover the entire sky, giving it a gray appearance. They typically develop when moist air is lifted gently, leading to extensive cloud cover. This type of cloud is generally associated with light, consistent rain or drizzle, making them significant for providing steady precipitation.

Nimbus clouds, while also associated with precipitation, are specifically linked to rain and stormy weather but do not exclusively refer to layered clouds. Cumulus clouds, with their fluffy, cotton-like appearance, are more indicative of fair weather and are not characterized by steady rain. Cirrus clouds, high and wispy in nature, typically indicate clear weather rather than precipitation. Thus, the stratus cloud is the one that best fits the description of layer formation and reliability in delivering ongoing rain.