The visible web contains anything "spidered" by a webcrawler. the most popular results on google. websites, videos, and other file types. all of the above.

all of the above because it dose not differentiate between them unless you tell google to

answer; /// the correct answer to the above statement is (a) because of the decline on native american labor forces;

but it is sometime nessary to hit key points or subjects   but is sometimes to much reveiw if there was a way to slim down the redone work it would improve for every body.