Which is a characteristic of nuclear fusion?
produces radioactive waste
involves the collision of two nuclei
commonly used by humans as an energy source
requires very little activation energy

The correct answer is "Nuclear fusion involves the collision of two nuclei"

Explanation:

Nuclear fusion is a reaction in which two light nuclei unite to form a heavier nucleus, with a mass slightly less than the sum of the masses of the initial nuclei and generally releasing particles in the process. The aforementioned mass defect results in a large release of energy.

Not all fusion reactions produce the same energy, it always depends on the nuclei that bind and the products of the reaction.

A typical nuclear fusion reaction involves combining two isotopes of hydrogen, deuterium and tritium, to form a helium atom plus a neutron.

An example of natural fusion is the energy produced inside the Sun. The fusion of hydrogen nuclei occurs to form helium, releasing in the process a large amount of energy in the form of electromagnetic radiation, which reaches the Earth's surface and which we perceive like light and heat.

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explanation: