Final answer:
A brown sign with white lettering is commonly seen on roadways and is known as a hazard sign. These signs provide important information about potential dangers or hazards that drivers may encounter while on the road.
Step-by-step explanation:
A brown sign with white lettering is commonly seen on roadways and is known as a hazard sign. These signs provide important information about potential dangers or hazards that drivers may encounter while on the road. Examples of hazards that may be indicated by a brown sign with white lettering include deer crossings, steep hills, sharp curves, and slippery roads.