Question

Based on radiometric dating of meteorites/asteroids, how old is the Earth?

a. 65 million years old

b. 4.6 million years old

c. 65 billion years old

d. 4.6 billion years old

2. A break in time in continuous sedimentary rock layers that is due to erosion is called?

a. Siccar Point

b. Contact

c. Unconformity

d. Eon

3. What do we use to numerically date rocks?

a. Radioactive isotopes

b. Minerals

c. Fossils

d. Acid

4. Regarding principles used to determine relative age, what does "Cross Cutting Relationships" recognize?

a. The layers at the bottom are older

b. The layers at the top are older

c. Layers go one horizontally forever

d. The rock that is cut into is older

5. What is something that you could use to correlate rock layers to each other across large areas?

a. Fossils

b. Limestone

c. The Upside Down

d. Silica

6. What's the element that's mostly used to radiometrically date rocks?

a. Uranium

b. Carbon

c. Silicon

d. Hydrogen

7. What's a Half-Life referring to?

a. It's another term for hobbits.

b. It's half the time it takes for magma to cool into a rock.

c. It's the time it takes for a given amount of radioactive isotope to be reduced by half.

d.It's half the time it takes for a bone to fossilize.

8. The concept of: "The present is the key to the past" is called what?

a. Catastrophism

b. Uniformitarianism

c. Relative Age Dating

d. Numerical Age Dating

9. When did the dinosaurs go extinct?

a. About 650,000 years ago

b. About 4,500,000,000 years ago

c. About 65,000,000 years ago

d. About 12,000 years ago

10. How many times does 1000 fit into 1 million?

FYI, 1000 is only 0.1% of 1 million.

I'm just trying to bang into your head just HOW BIG 1 million is.

a. 1000

b. 10

c. 100

d. 1

Answer 1

1. The correct answer is:- 4.6 billion years old.

The Earth is 4.6 billion years old on the basis of radiometric dating of meteorites/asteroids.