In a year, a study found that of the 6 billion people in the world, 4 billion have cell phones. how many people lived without access to cell phones that year?

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.