I think it's fertilisation (^^)
Answer:
D. Solid state
Explanation:
In solid state the particles of a substance, vibrate in fixed positions though they posses less kinetic energy. This is the reason as to why the particles do not move far apart from each other making the solids remain in fixed shapes unless an extra energy is added.
Answer:
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Negatively charged particles in atom - Electrons
It is an exothermic reaction