Fossils of sea creatures have been found near the top of Mount Everest (8848m above the sea level). How do you think they could have got there?

Explanation:

The fossils can be found on top of mount Everest due to regional uplift of the crust.

Mount Everest is located a along a convergent margin between two tectonic plate. Due to similarity in density between the two margins, when they collide, there is tectonic build up.

Sedimentary rock layers originally at sea levels are uplifted to those tower peaks as the plate continues to grind against each other.

Most sedimentary rocks contains fossils. As the grinding continues, the uplift and deformation continues.

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explanation:

percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally