Yes they did, they used them because they were essential to the work of early crafts men
<u>The correct answer is D. Very significant because millions of people died around the world. </u>The Second World War had terrible human consequences, since with it disappeared 3% of the world population that corresponded to about 78 million people, who perished in concentration camps, in the midst of bombings or on the battlefield.
As he could explore the real world and develop good social skills
