1. According to scietists, which is the firdt 4-legged animal to invade the land?
2. According to scientists which is the first ever bird?
3. Which is the fastest insect?
4. Which is the tallest grass?
5. Which is the largest amphibian?
6. Which is the largest lizard?
7. Which is the biggest bird in the world?
8. The hardest wood is from which tree?
9. What is the study of prehistoric animal and plant life through the analysis of fossil remains called?
10. The study of plants is called what?
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