1. What was Earth’s early atmosphere mainly composed of?
(a). Oxygen
(b). Carbon dioxide
(c). Hydrogen and helium
(d). Nitrogen
2. When did Earth approximately appear from cosmic dust and gas?
(a). 3.8 billion years ago
(b). 4.54 billion years ago
(c). 2.5 billion years ago
(d). 1 billion years ago
3. In which era did the emergence of reptiles and mountain-building events begin?
(a). Paleozoic era
(b). Mesozoic era
(c). Cenozoic era
(d). Anthropocene period
4. Which geological time scale serves as a roadmap for understanding Earth’s history?
(a). Chronological time scale
(b). Biological time scale
(c). Radiometric time scale
(d). Geological time scale
5. During which era did early marine life forms emerge?
(a). Paleozoic era
(b). Mesozoic era
(c). Pre-Paleolithic Age
(d). Anthropocene period
6. What was the primary source of enriching Earth’s atmosphere with oxygen?
(a). Volcanic eruption
(b). Photosynthesis
(c). Meteorite impact
(d). Tectonic plate movement
7. In which era did complex marine organisms emerge?
(a). Mesozoic era
(b). Paleozoic era
(c). Cenozoic era
(d). Pre-Paleolithic Age
8. What initiated biological activity during the Archean Era?
(a). Formation of mountain ranges
(b). Emergence of reptiles
(c). Evidence of simple life forms
(d). Intense bombardment
9. In which period did dinosaurs dominate and angiosperms emerge?
(a). Jurassic period
(b). Cretaceous period
(c). Triassic period
(d). Devonian period
10. Which era is characterized by the formation of major mountain ranges and the diversification of mammalian life?
(a). Paleozoic era
(b). Mesozoic era
(c). Cenozoic era
(d). Anthropocene period
11. In which era did the supercontinent Pangea disintegrate?
(a). Triassic period
(b). Jurassic period
(c). Permian period
(d). Holocene period
12. Which period is called the golden age of dinosaurs?
(a). Cambrian period
(b). Jurassic period
(c). Carboniferous period
(d). From Paleocene to Pleistocene period
13. Which geological era was characterized by barren landscapes and the emergence of early marine life forms?
(a). Paleozoic era
(b). Mesozoic era
(c). Pre-Paleolithic Age
(d). Cenozoic era
14. Which process gradually enriched the Earth’s atmosphere with oxygen?
(a). Volcanic eruption
(b). Meteorite impact
(c). Photosynthesis
(d). Ocean currents
15. Which period is known for its explosive biodiversity and the emergence of complex marine organisms?
(a). Devonian period
(b). Cambrian period
(c). Permian period
(d). Carboniferous period
16. During which geological era did human activity cause significant changes to Earth’s climate and ecosystems?
(a). Paleozoic era
(b). Mesozoic era
(c). Cenozoic era
(d). Anthropocene period
17. What initiated Earth’s biological activity during the Archean Era?
(a). Formation of mountain ranges
(b). Emergence of reptiles
(c). Evidence of simple life forms
(d). Intense bombardment
18. In what period did early marine life forms emerge?
(a). Pre-Paleolithic Age
(b). Paleozoic era
(c). Mesozoic era
(d). Cenozoic era
19. Which era is characterized by the formation of major mountain ranges and the diversification of mammalian life?
(a). Paleozoic era
(b). Mesozoic era
(c). Cenozoic era
(d). Anthropocene period
20. In which era did the supercontinent Pangea disintegrate?
(a). Triassic period
(b). Jurassic period
(c). Permian period
(d). Holocene period
21. Which period is called the golden age of dinosaurs?
(a). Cambrian period
(b). Jurassic period
(c). Carboniferous period
(d). From Paleocene to Pleistocene period
22. Which geological era was characterized by barren landscapes and the emergence of early marine life forms?
(a). Paleozoic era
(b). Mesozoic era
(c). Pre-Paleolithic Age
(d). Cenozoic era
23. Which process gradually enriched the Earth’s atmosphere with oxygen?
(a). Volcanic eruption
(b). Meteorite impact
(c). Photosynthesis
(d). Ocean currents
24Which period is known for its explosive biodiversity and the emergence of complex marine organisms?
(a). Devonian period
(b). Cambrian period
(c). Permian period
(d). Carboniferous period
25. During which geological era did human activity cause significant changes to Earth’s climate and ecosystems?
(a). Paleozoic era
(b). Mesozoic era
(c). Cenozoic era
(d). Anthropocene period