Aboslute & Relative Age 2

Posljednje ažuriranje almost 4 years ago

Biblioteka

Aboslute & Relative Age 2

Posljednje ažuriranje almost 4 years ago

Pitanje 1

The relative age of a rock is...

Based on how much carbon-14 the rock contains

Its age compared to the ages of other rocks

Less than the age of the fossils the rock contains

The number of years since the rock formed

Pitanje 2

How are half-lives used in Earth Science?

Used to determine the absolute age of rocks

Used to determine the relative age of rocks

Used to determine what the rock is composed of

Used to determine how many fossils are in the rock

Pitanje 3

The time it takes for half of the radioactive atoms in a sample of radioactive element to decay is the element's...

Relative age

Absolute age

Half-life

Potassium-Argon date

Pitanje 4

How many half lives have passed when there are approximately 84,000 atoms of the daughter element?

Pitanje 5

The half-life of the parent element is 500 years. If a fossil is found with 50,000 atoms of the parent element remaining, how old is the fossil? Use the graph above to help you answer the question.

500

1000

1500

2000