<span>Crawler-based search engines are what most of us are familiar with - mainly because that's what Google and Bing are. These companies develop their own software that enables them to build and maintain searchable databases of web pages (the engine), and to organise those pages into the most valuable and pertinent way to the user.</span>
According to Newton's third law, for every action force there is an equal (in size) and opposite (in direction) reaction force.
Answer:
C communication software
Explanation:
C communication software IS THE ANSWER
