Thomson's model of the atom was called the plum pudding model. He discovered electrons, so he placed them in the atoms. This was before the nucleus was discovered.
Now, the current model is an atom that contains a positively charged nucleus (with both protons and neutrons), and negatively charged orbitals with electrons.
Https://chem.libretexts.org/Core/Analytical_Chemistry/Quantifying_Nature/Units_of_Measure/SI_Units
Look for it here
1×10^-4 = 0,0001M
pH = -log[H+]
pH = -log0,0001
pH = 4
Answer:
Because the scientific knowledge itself helps solve many basic human needs and it also improves how humans live and their standards. For example, without science medications wouldn´t exist and many technological devices we use now-a-days. We´re surrounded by science, we just don´t really notice it.