Geologic eras chart

Question 1

name 2 major geological events and 2 major biological events foe the cenozoic time period

Answer 1

geological events-
continents take present shape
formation of rocky mountains done

biological events-
human beings develop
age of mammals

Question 2

name 2 major geological events and 2 major biological events foe the meaozoic time period

Answer 2

geological events-
innuitian mountains formed
shallow seas in interior of north america at various times

biological events-
age of reptiles

Question 3

name 2 major geological events and 2 major biological events foe the Palaeozoic time period

Answer 3

geological events-
Appalachians formed
periods where large parts of north america were covered by shallow seas

biological events-
large swamps
first insects

Question 4

name 2 major geological events and 2 major biological events foe the precambrian time period

Answer 4

geological events-
precambrian shields such as the canadian shield, african, austrailian, are formed

Biological events- first multi-celled organisms
first single celled organism

Question 5

name each era and its time period

Answer 5

cenozoic ( recent life) 66 million years ago and still continuing

mesozoic ( middle life) 245-66 million years ago

Palaeozoic (ancient life) 570-245 million years ago

precambrian (earliest life) 4600-570 million years ago