Question

multiple choice
based on the following, what is the biggest advance of additive manufacturing? (select all that apply.)
as the name implies, 3 - d printing produces a three - dimensional object. it starts with a thin layer of powder on a building platform. the powder may be plastic, metal, wood pulp, cobalt, or other materials, or, at some point, human tissue.
additive manufacturing is purely science fiction.
additive manufacturing will permit time travel.
additive manufacturing is rarely sustainable.
additive manufacturing might produce skin for burn victims.

Explanation:

• Additive manufacturing (3 - D printing) is a real - world technology, not science fiction. So the option "Additive manufacturing is purely science fiction" is incorrect.
• There is no indication in the description (or in general knowledge) that additive manufacturing has anything to do with time travel. So the option "Additive manufacturing will permit time travel" is incorrect.
• The description does not mention anything about sustainability in a negative sense. In fact, additive manufacturing can have some sustainable aspects (e.g., less waste in some cases compared to subtractive manufacturing). So the option "Additive manufacturing is rarely sustainable" is not supported by the given text.
• The text mentions that the powder can be human tissue at some point. Burn victims' skin could potentially be made using additive manufacturing with human tissue - related materials.

Answer:

Additive manufacturing might produce skin for burn victims.