Gts

Which of the following scientists study the Earth's organisms?

• Geologists

• Paleontologists

• Neither A or B

• Both A and B

Tags

NGSS.3-LS4-3

NGSS.4-LS1-1

Why do geologists use radioactivity?

• To determine the age of the Earth

• To determine the age of substance found on Earth

• To determine the length of time a living thing has lived

• To determine how long each time-period lasted on Earth

Tags

NGSS.MS-ESS1-4

Which of the following Geologic Time eras is found in the seas only?

• Cenozoic Era

• Mesozoic Era

• Early Precambrian Eon

• Paleozoic Era

Which of the following Geologic Time eras is called the 'age of Reptiles'?

• Mesozoic Era

• Precambrian Eon

• Paleozoic Era

• Cenozoic Era

Which of the following Geologic Time eras is Earth currently in during the year 2020?

• Mesozoic Era

• Precambrian Eon

• Paleozoic Era

• Cenozoic Era

Tags

NGSS.MS-ESS1-4

The Geologic Time System (GTS) uses all the following to identify time EXCEPT:

• Seconds and Minutes

• Eons & Eras

• Epochs

• Periods

Tags

NGSS.MS-ESS1-4

The longest units of geologic time are

• eons

• eras

• periods

• epochs

Tags

NGSS.MS-ESS1-4

Eons are subdivided into _________.

• eons

• eras

• periods

• epochs

Tags

NGSS.MS-ESS1-4

Eras are subdivided into _________.

• eons

• eras

• periods

• epochs

Tags

NGSS.MS-ESS1-4

Which one of the following is a period of the Mesozoic ers?

• Permian

• Neogene

• Ordovician

• Triassic

• Mississippian

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3