What is altered by a catalyst? activation energy
average kinetic energy of reactants
average kinetic energy of products
difference between the energies of products and reactants

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

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i believe the answer is c. "baking" is the gerund, while "baking blueberry muffins" would be the gerund phrase. hope this ! : )

its going to be mutualism cuz they both benefit from the relationship.

~batmans wife dun dun

i have no clue hope you find the answer