Sheet-like clouds that make a large layer covering the sky are called

Sheet-like clouds that make a large layer covering the sky are called Stratus Clouds

Explanation:

Stratus clouds are the type of clouds that form in the sky is a type of layer covering it, they can form patterns also and have a fairly homogeneous gray to white color. They can last a large amount of time and form on the surface in a type of mist or fog. They are called stratus because the meaning of the word is Layer.

a "theory" a suggestion that is not 100 % accurate, or a figure. some people say its a theory because they of all the passed theory's about one subject. it depends sometimes theory might be accurate and sometimes they are.

no i don't feel that humans have oversubscribed some medications