True or false

1. Friction is a force that opposes motion between surface sticking or touching together.

2.riding a bicycle is an example of rolling friction.

3.when an object is at rest over a surface, the type of friction is produced is sliding friction.

4.an example of a sliding friction is when a train goes around

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10.

8 didn't put the sentence because i dont have time, to put it.so please answer 5 to 10, also 1 to 4.hope you all know the sentence

just please answer this