Question

how do 3D printing be used in the future to solve pressing global issues do you think it could be used for harmful purposes if yes give example of two ways in which This can happen​

Answer 1

yes u are right we can use 3d paintings at roads to slow down the speed of cars 2.we can stood 3d policeman at roads and it will prevent
helmet issues.
this is my idea it may differ(note)

Answer 2

Explanation:

3D printing, or additive manufacturing, has the potential to democratize the production of goods, from food to medical supplies, to great coral reefs. In the future, 3D printing machines could make their way into homes, businesses, disaster sites, and even outer space.