Answer: toeboard
Explanation: The Occupational Safety and Health Administration defines the Walking-Working surfaces regulation for the secure construction of stairs in industrial environments. For platforms or walls that are 4 feet or higher above the ground and do not have surrounding walls, it is mandatory to build a standard railing around them. In cases where there is a moving machinery, people can pass or there is an equipment which would be harmful when falling objects come in contact with it, the railings must have a toeboard.
A toeboard is an equipment fixed vertically to prevent items from falling for the platform.
Idk because we need
More information please
the first one and third one sis
<span>The
Zeppelins were light and fast and could carry a substantial amount of load in
terms of manpower and cargo. They were
also very silent and could fly higher than the present aircrafts at the
time. Unfortunately, they could easily
suffer damage from small arms fire and their source of fuel is very
volatile. One mistake and the whole ship
would be engulfed in flames. The
Hindenburg was good example of that.</span>
