Question

communication
transportation
bio - technology
nanotechnology
a 3d printer adds layers of filament on top of each other to build a model. what is this called?
dimension
fillet
extrude
additive process

Explanation:

1. For the first question, the image and options suggest a focus on different technology - related areas. Transportation is the correct choice among the given options as it is a distinct technological and infrastructure - related field.
2. For the second question, 3D printers build models by adding layers of filament on top of each other. This process is known as an additive process. Dimension refers to size, fillet is a rounded edge, and extrude is a different manufacturing operation related to pushing material out.

Answer:

1. B. Transportation
2. D. Additive Process