Concrete for a factory floor has to be laid to a depth of 12cm. what area would a 18cm^3 load of liquid concrete cover?

the highest percentage for deaths in construction from highest to lowest is as follows: falls, struck by objects, electrocution, and caught-in/between. these four are collectively known as fatal four.

in the case of falls, the type that is responsible for the overall highest death in the category is falls from roofs.