Relation between training and occupation with examples in points . Plz tell fast

What are compression artifacts? 1) visible defects in the picture caused by the nature of the compression algorithm. 2) numbers that tell a web server how much to compress a picture for faster transmission. 3) invisible defects in the picture preserved by lossless compression. 4) numbers that tell a photo editing program how much to compress a picture for faster transmission.

What’s resistance in an electrical circuit ?

Choose the best explanation for the following statement communication is symbolic