Why does a greater surface area increase the rate of reactions? a) It increases the quantity of reactants available to react
b) It lowers the activation energy
c) It increases the energy of reactant particles
d) It increases frequency of collissions

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.

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