How is radioactive decay used to date sedimentary rocks?

Biology

2 answers:

Zigmanuir [339]2 years ago

8 0

The answer is; B

Different radioactive isotopes have different half-lives (which is the amount of time taken for half of the total isotopes in the material to decay). Therefore, to predict the age of a rock in radiometric dating, the initial amount of the isotopes is determined and then that of decayed ones is determined. The predictability of the half-lives of the elements is then used to determine the age of the rock/fossil.

solniwko [45]2 years ago

4 0

<span>Hello to answer your question fully.

<span>B.The amounts of carbon-14 and nitrogen in sedimentary rocks are measured.</span>

Radioactive dating is a method of dating rocks and minerals using radioactive isotopes. This method is useful for igneous and metamorphic rocks, which cannot be dated by the stratigraphic correlation method used for sedimentary rocks.

Signed by, Expert Sargdog
</span>

You might be interested in

I have posted this 3 times can some one plz help?

erma4kov [3.2K]

I’m not sure ..... give me a minute

4 0

3 years ago

Read 2 more answers

In the Arroyo Seco, the Western Toad feeds on beetles, bees, and small aquatic insects. The Bull Frog has been introduced and ea

PilotLPTM [1.2K]

Answer:The based on this information interaction between these two species can best be described as COMPETITION. Correct option is B

Explanation:

Competition occurs between two species that shares the same requirements ( especially food) for survival.

Both the Western Toad and the Bull Frog has a similar niche because they require the same type of food (beetles, bees, and small aquatic insects) to survive in the environment of Arroyo Seco. Only one of the species will coexist in that environment and it's usually the survival of the fittest.

This explains the competitive exclusion principle proposed by Georgii Gause in 1934.

8 0

2 years ago

Which of the following examples best define multiple alleles?

anygoal [31]

Answer: The correct answer is b.

Explanation:

8 0

2 years ago

Which of these receptor types functions as an exteroceptor? Which of these receptor types functions as an exteroceptor? C D E Al

Bond [772]

Answer:

The answer is various general sensory receptors

Explanation:

All of the listed responses are correct. All structures sensitive to stimulus arising outside the body.

6 0

3 years ago

What factor affects the root system?

MrRissso [65]

Answer: Their growth is strongly affected by the environmental conditions found in the root zone.

Explanation: To survive and grow, they need Air (gas exchange), Water, Non-limiting Temperature, Carbohydrates, Minerals, Space, Low Soil Density, Microbial Associations and Non-toxic soil chemistry.

4 0

2 years ago