When dinosaurs lived. what would you like to see if you could visit the time of dinosaurs?

I would want to see what the dinosaurs ate, how they looked like up close, and how they would react to a human being right in front of them.

b) the planets year length would be longer

hope this !

jupiter is mainly composed of hydrogen and helium just like a star. spectral analysis of jupiter has revealed that in addition to hydrogen and helium, the planet is made of water, methane and ammonia. those elements are in trace amounts. the core of the planet is thought to contain some rock and metallic hydrogen. i hope this will give you the answer to your question! : d