Questions by Clemens Sielaff

Questions by Clemens Sielaff

A sample taken from a layer of mica in a canyon has 2.10 grams of potassium-40. A test reveals it to be 2.6 billion years old. How much potassium-40 was in the sample originally if the half-life of potassium-40

asked Aug 3, 2019

2 answers

5 votes

95.3k views

This is the process in which two chromosomes exchange dna during prophase of meiosis.

asked Dec 16, 2018

2 answers

3 votes

191k views

How did the failure of the stock market contribute to a larger economic decline?

asked Mar 6, 2018

1 answer

1 vote

231k views

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