i know the answer to your question
Selective breeding be nearly impossible without a wide variation of species. This is usually done to create a specific breed of animals.
Without animals everyone would die unless you were a vegetarian.
it will not be any life without animals
I think it is impossible or near impossible but I would have to say shut down all technology and get rid of every car and be like animals and live without technology but I'm not sure if this is the kind of answer you were looking for.
Without friction - climbing a rope would be impossible !
Animals do not know what the law is, so they may, by mistake, break it. Most animals have no intent to break the law or do wrong, so I would say the answer is no.
Number of animals would decrease and it would be almost impossible to breathe.
it would be nearly impossible to stop cuz it is slippery
No it is theoretically impossible
First of all, humans need plants and other animals for food. It is impossible to live a healthy life without both of them. Also, plants take in CO2, cleaning our air, and give off oxygen, so we can breathe. Without plants we would not be able to breathe and our air would become very polluted.
Without friction it would be impossible to stand, you would instantly fall down flat. Without friction it would be impossible to crawl. Without friction the only way it would be possible to move would be by using thruster jets, as they do on spaceships.
Yes, it would be impossible to live without one.