Dejalimblhar
Answered

The helium used to fill birthday balloons doesn’t come out of the air, but from. out of the ground. Some of the gas might escape from the ground into the. atmosphere, but the majority of it is trapped in Earth’s crust. Based on what you have learned from the experiment, give a reasonable explanation for the presence of helium gas in Earth’s crust.

Answer :

Well , i think helium gas is present in the Earth Crust because metals found in the crust have nuclei that decay into another elements
One of this element that formed is Helium

hope this helps
CharlieStryker
Based on what you have learned from the experiment, give a reasonable explanation for the presence of helium gas in Earth’s crust.

Answer: a reasonable explanation for the presence of helium gas in Earth's crust is that it was trap from when the Earth was formed and has yet to escape. Technically it is a result of alpha decay of uranium and thorium.

I hope it helps, Regards.

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