The History of Life on Earth

Question 1

Highest atmospheric Carbon Dioxide

Answer 1

Precambrian

Question 2

Lowest atmospheric Carbon Dioxide concentration

Answer 2

Quaternary

Question 3

Lowest atmospheric oxygen concentration ( in the past 500 - million years)

Answer 3

Triassic

Question 4

Lowest sea levels

Answer 4

Permian and Triassic

Question 5

Supercontinent that existed from the late Paleozoic (335 may) until the Mesozoic era (175 may) when it broke apart

Answer 5

Pangaea

Question 6

The southern region of the Pangaea supercontinent

Answer 6

Gondwana

Question 7

Precambrian supercontinent that formed roughly 1.3 bya and broke up around 630mya, causing the Snowball Earth event

Answer 7

Rodinia

Question 8

The northern region of the Pangaea supercontinent

Answer 8

Laurasia

Question 9

From igneous rock to metamorphic

Answer 9

Heat and pressure

Question 10

From magma to igneous rock

Answer 10

Cooling

Question 11

From metamorphic rock to sediments

Answer 11

Weathering & Erosion

Question 12

From sediments to sedimentary rock

Answer 12

Compaction and cementation

Question 13

From metamorphic rock to magma

Answer 13

Melting

Question 14

Teritary and Quaternary periods

Answer 14

Cenozoic era

Question 15

Proterozoic, Archaean and Hadean eons

Answer 15

The “precambrian “

Question 16

Ordovician, Carboniferous and Permian periods

Answer 16

Paleozoic era

Question 17

Miocene and Pliocene epochs

Answer 17

Neogene period

Question 18

The age of amphibians

Answer 18

Carboniferous period

Question 19

The age of fishes

Answer 19

Devonian period

Question 20

The age of mammals

Answer 20

Cenozoic era

Question 21

The ice age

Answer 21

Pleistocene epoch

Question 22

The _______ Explosion

Answer 22

Cambrian period

Question 23

The age of reptiles

Answer 23

Mesozoic era

Question 24

The Agee of man (The Anthropocene)

Answer 24

Holocene Epoch

Question 25

Multi-cellular Eukaryotic life appears on Earth

Answer 25

1.5 BYA

Question 26

This period is dominated by the diversification of the first terrestrial vascular plants

Answer 26

450 MYA

Question 27

A massive asteroid impact causes an extinction event that kills nearly all dinosaur species ( except birds)

Answer 27

65 MYA

Question 28

The sun and solar system, including Earth forms

Answer 28

4.5 BYA

Question 29

Changes to the pH of Earth cause a sudden decrease in Fungal species, leading to reduces decomposition of plants. This results in the formation of fossil fuel deposits.

Answer 29

350 MYA

Question 30

Glaciation events cause the Earth to rapidly warm and cool in cycles as the first humans spread out of Africa

Answer 30

2 MYA

Question 31

The Cambrian explosion leads to a massive adaptive radiation of all animal species

Answer 31

550 MYA

Question 32

The Snowball Earth event results in a mass extinction

Answer 32

630 MYA