What does a sign that warns of a disabled person crossing look like?

Mastery of road signs is a must for all motorists. It ensures road safety for both motorists and pedestrian. The sign which signals a disabled person crossing appears like a yellow diamond with a black image of an individual in a wheelchair on it.

i'm not sure, but can you answer my most recent question?

all soils contain mineral particles, organic matter, water and air the combinations determine the soil's properties – its texture, structure, porosity, chemistry and color. soil is made up of different-sized particles. sand particles tend to be the biggest.