I’m wondering what causes the dinosaurs to become extinct I think that it was climate change let me explain why
At a few points in the world there was a ice age it could of been that there was a ice age and it killed then off
Of course this is just my theory im wondering what everyone else thinks made the dinosaurs extinct
Nobody truly knows what caused it they might even of had technology that they misused and caused chaos and that’s how they went
Maybe a disease wiped them out.
They talk about something hitting the planet, not sure how that could have killed them all…
I like ur idea about an atmospheric change it sounds good
I think the prevailing opinion is that 65 million years ago a giant meteor hit earth causing drastic climate change and the dinosaurs couldn’t survive the change.
Because I like dinosaur chicken nuggets.
I am not extinct yet. Be nice.
I think I can answer!
as far as the info reached me, its due to astroid or comet 
Conspiracy theories 
Humans took over the planet !
I believe anything and everything 
Perhaps they had an astrosaur program and they left the planet. Yeah I watched too much Star Trek: Voyager.
Think about how much food they needed to live though.
So what I remember learning is that the comet that landed and created that huge crater caused a bunch of stuff to kick up into the atmosphere and block out the sun (nuclear winter) causing an ice age resulting in all of the dinosaurs dying.
I think @ThePickinSkunk 's idea is more fun. I’m gonna deposit my own possible idea: they were abducted by aliens right before extinction and are on a zoo in Mars right now.
Meteor explodes covering most of the planet in dust. Plants can’t grow in this environment, so the herbivores die, then the carnivores.
Clearly you’ve not seen Jurassic park. Lil velociraptor lives in my woods.
Velociraptors turn into little shutterbugz
Well those zany rascals grew to be too big for their britches so God himself yelled down, “I’m sick of your guy’s ■■■■!” And then he zapped a huge meteor down to kill them all.
True story.
Dinosaurs aren’t extinct Im dinosaur rawr!
The Dinosaurs are extinct because the show was hardly attractive to a kindergartener.
I knew it, my dinasour senses could sense another dinasour hidden amongst us.
It was getting cramped under the couch.
Cause I farted oops 
Omggggg sooooo yuckyyyyyyyy 
The most popular opinion is that a meteor hit the earth.
I tend to think, however, that the environment changed so they changed too.