The color of a recreational sign is typically green with white lettering.
A sign of cultural interest.
The colour of a street sign for deer crossing depends primarily on what country you are in. In North America, they tend to be a yellow diamond with a deer on the front.
brown
Used for recreational area guide signs.
easy, they just sign up in a recreational sports office!
The nouns in the sentence are: sign, drivers, rocks, and street.
A Stop Sign. How do you not know this?!
The color of a "no littering" sign is typically red and white, or sometimes blue and white.
its on the street sign
No, it is a noun. It can be used an an adjunct with other nouns, as in street sign and street map.
Dig it out.