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svetoff [14.1K]
3 years ago
8

In a process called radiometric dating, scientists measure the __________ of an isotope to determine the age of the earth

Biology
2 answers:
loris [4]3 years ago
4 0
The answer is: fixed decay rate!
EleoNora [17]3 years ago
3 0

Answer:

In a process called radiometric dating, scientists measure the fix decay rate of an isotope to determine the age of the earth.

Explanation:

In the process of radiometric dating we can find the age of fossils, how long the rocks formed and fossils contains within those rocks. Radiometric is very accurate to date the earth, and radioactive decay of unstable isotopes like uranium, carbon and potassium that are slow to decay.  

Scientist measures the fixed decay rate during the radioactive decay, it happens when an unstable atomic nucleus continuous changes to lower energy state and splits the radiation.

 

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zhannawk [14.2K]

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6 0
2 years ago
Several fish species became extinct millions of years ago. The graphs provided below show the distribution of fossils of these f
cestrela7 [59]
1. Explain why the distribution of fossils in Figure 1 supports the hypothesis that the extinction of these species was the result of a sudden environmental change.
This hypothesis can be supported because all the fossils accumulate almost at the same age of the rock layer. That is, all the fossils died almost at the same time.

2. Describe an environmental change that could have produced this type of fossil distribution.
Good examples of sudden environmental changes are volcanoes. When a rash occurs, the whole environment suddenly changes for different reasons such as ash or lava, and all living things can die immediately or in a few years by the change in the ecosystem.

3. Explain why the distribution of fossils in Figure 2 supports the hypothesis that the extinction of these species was the result of a gradual environmental change.
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4. Describe an environmental change that could produce this type of fossil distribution.
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I hope this can help you.
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