Final answer:
The prefix for a low-lying cloud is 'strato-,' and such clouds are known as stratus clouds. They are characterized by their uniform, flat appearance and often indicate overcast weather with potential for light drizzle or mist.
Step-by-step explanation:
The prefix for a low-lying cloud is strato-. These clouds are known as stratus clouds and are characterized by their horizontal layering with a uniform base. Stratus clouds are formed when a large mass of air becomes saturated due to uplift and cooling at the Earth's surface, leading to condensation and cloud formation.
Stratus clouds are often associated with overcast weather and can bring light drizzle or mist. They are not typically associated with heavy rain or storms, which are more common with cumulonimbus clouds. It's important for students to note the different types of clouds as they can tell a lot about the weather conditions and climate.