Yes, I believe that all matter on Earth originated from protons and neutrons through nuclear synthesis or reactions, because this is supported by scientific evidence.According to science, protons and neutrons were formed shortly after the Big Bang, and through nucleosynthesis, these particles combined to form atoms of elements like hydrogen, helium, and later on, heavier elements inside stars.These atoms became the building blocks of all matter — including water, air, rocks, plants, animals, and even humans. Nuclear reactions in stars created the elements we find on Earth today, which proves that matter originally came from basic particles like protons and neutrons.