Life On Earth (Eons and Eras) Flashcards
1
Q
How many Eons are there
A
4
2
Q
Name the 1st Eon
A
The Hadean Eon
3
Q
Name the second Eon
A
The Archeon Eon
4
Q
Name the third Eon
A
The Proterozoic Eon
5
Q
Name the 4th current Eon
A
The Phanerzoic Eon
6
Q
What happened in the Hadean Eon
A
Earth’s Formation (No life) Too toxic
7
Q
What life was in the Archeon Eon
A
Microscopic life in sedimentary rock
8
Q
What life existed in the Proterozoic Eon
A
Microscopic multicellular life in rock
9
Q
What life exists in the Phanerzoic Eon
A
Visible multicellular life
(Lots of fossilized evidence of hard body parts of living things)
10
Q
Which Eon has 3 Eras
A
The current Eon (The Phanerzoic Eon)
11
Q
Name the three eras in the Phanerzoic Eon
A
The Palaeozoic Era
The Mesozoic Era
The Cenozoic Era
