Answer:
Mass communication.
Explanation:
Mass communication:-It is the exchanging or transmitting information to large numbers of people through mass media.
Mass media includes various medium through which we can transfer information such as magazines,newspapers,television,radio,films,websites and other also.
So Zee TV uses mass media to transfer information to very large number of people.
Answer:
Probably because it's really expensive and not well known.
Explanation:
Some metals and plastic are not able to be altered for 3D printing, which makes this harder for some people to get hold of. Most of the materials are also not able to be recycled, which makes it harder.
