A farmer uses water to irrigate his potato crops. Which roles of water does this examplify

Chemistry

1 answer:

exis [7]3 years ago

7 0

Answer:

This exemplifies the agricultural role of water.

Explanation:

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How does natural selection produce adaptations in a species?

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The half-life of radium-226 is 1590 years. if a sample contains 100 mg, how many mg will remain after 1000 years?

Katyanochek1 [597]

Answer:

$a=64.7mg$

Explanation:

Hello,

In this case, we need to remember that for the required time for a radioactive nuclide as radium-226 to decrease to one half its initial amount we are talking about its half-life. Furthermore, the amount of remaining radioactive material as a function of the half-lives is computed as follows:

$a=a_0(\frac{1}{2} )^{\frac{t}{t_{1/2}} }$