An earthquake is a vibration of the Earth produced by a rapid release of energy. This vibration usually begins when there is a build-up of stress in the Earth's crust resulting in
A)
tectonic plates buckling up.
Eliminate
B)
rift zones under the oceans.
C)
plate movement at fault lines.
D)
convection currents within Earth's magma.

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).