добрый день, помогите пожайлуста составить вопрос к предложениям с What? 1. Only big and hairy animals called mammoths lived on our planet.2 then everything change on our planet and mammoths daid out.3 the word dinosaur means a terrible lizard. 4. children like cartoons and films about mammoths and dinosaurs. предложения только с What? спасибо

What did the mammoths eat? What is it that appeared on the planet that mammoths died out?What happened that the dinosaurs were called a terrible lizard?What cartoons and movies are interesting   about dinosaurs and mammoths?