Answer:
net force
Explanation:
Net force felt by an object.
The answer is d. Wavelength
<span>Tectonic plates move because they are floating on top of the liquid mantle. The mantle itself moves due to convection currents: hot rock rises, gives off some heat, then falls. This creates vast swirls of moving liquid rock under the crust of the earth, which jostles the plates of crust on top.
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Activation Energy is the amount of energy needed to get a reaction started.
Primary Waves
Secondary go only through air, but not water.
