Dinosaur Extinction Riddles

I am a big hole in the ground. I appear after an asteroid hits the Earth. You can still see one in Mexico from the dinosaur extinction. What am I?

I was a very long dinosaur. I had a long neck and a long tail. I was a peaceful plant eater. Who am I?

I lived millions of years ago. I was a giant reptile. You can only see my bones in museums today. What am I?

I am a giant rock from space. Millions of years ago I hit the Earth. Many scientists believe I caused the extinction of dinosaurs. What am I?

I was a small but very fast dinosaur. I hunted in groups. You probably saw me in Jurassic Park. Who am I?

I am small pieces of rock and dust. I fly everywhere after an explosion or impact. The asteroid created a lot of me. What am I?

I am an animal that eats only plants. I do not eat meat. Many dinosaurs were like me. What am I?

I am an animal that eats meat. I hunt other animals for food. Some dinosaurs were like me. What am I?

I had three horns on my head. I also had a large bony shield on my neck. I was a herbivore. Who am I?

I happen when a species disappears forever. Dinosaurs suffered this event millions of years ago. What am I?

I am the planet where humans live. Dinosaurs lived here millions of years ago. I am the third planet from the Sun. What am I?

I was one of the most famous dinosaurs. I had very small arms and very sharp teeth. I was a powerful carnivore. Who am I?

I had big plates on my back. I also had spikes on my tail. I was a peaceful plant eater. Who am I?

I am a black powder. I appear after big fires or explosions. After the asteroid impact, I covered the sky. What am I?

I was a huge carnivorous dinosaur. I had a large sail on my back. Some scientists think I could swim. Who am I?