問題一覧
1
The earth was extremely hot this time
hadean eon
2
The earth cooled down and solidified
archean eon
3
The earth began to accumulate oxygen
proterozoic eon
4
Current eon
phanerozoic eon
5
Phanerozoic means?
visible life
6
The erise and fall of super continent
paleozoic era
7
Age or era of dinosaur
mesozoic era
8
Age of mammals, modern humans
cenozoic era
9
Explosion of diverse life
cambrian period
10
Marine life flourished, first land plants appeared
ordovician period
11
Coral reefs formed
silurian period
12
Age of fish
devonian period
13
Evolution of large insects and early reptiles
carboniferous period
14
First dinasour and mammals
triassic period
15
Dinosaur dominant
jurassic period
16
Dinosaur reached their peak, close to extinction
cretaceous period
17
Mammals diverisify after dinobots
paleogene period
18
Early human ancestors evolved
neogene period
19
Ice ages, emergence of homo sapiens
quaternary period
20
Largest extinction in the earth LARGEST
permian period