You will notice by,
1. Huge cracking in a stone high above.
2. If you have like a hill of rocks and the ground is shaking.
To warn people of hazards use:trainingsafety meetingswarning signs
There are a wide range of road signs that are used for various reasons. There are stop signs to warn people to stop at intersections, Yield signs so that one will yield to oncoming traffic, Deer Crossing signs to warn of areas where there might be deer crossing the road as well as Speed Limit signs to warn drivers of the allowed speed in a designated area.
We warn people about hazards in a workplace through training, communication, safety meetings, hazard warning signs and symbols, labels and markings, making Safety Data Sheets available
Roadside signs
to warn of a possible danger ahead.
it is called "bad little falls" because of the rough ride down the waterfall if you canoe it. So calling it "bad little falls" was a good idea to warn people of the rough ride
Signs intended to warn you of a hazard may be called "safety signs" by some, and they are red and yellow in color. Safety signs that are intended to tell you that something is "safe" are green in color.
Yellow, diamond warning signs.
Diamond
We wouldn't have our side of the Niagara Falls.
is to warn us to recycle materials so that it help by reducing waste
True