The movement of the earths plates is also called:

The movement of the earths plates is also called:

Explanation:

Plate tectonics is used to explain the origin of earthquakes from the movement of terrestrial plates, which is usually slow enough to be detected with the naked eye, but sometimes releases enough energy to cause earthquakes, another possible event is that two plates touch each other on one of their edges, which can be represented in a seismic wave that derives in an earthquake.

c) should be the answer.

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