2. An atom is found to have 32 protons, 40 neutrons, and 32 electrons a. Recall the mass of a proton, in atomic mass units

72 amu

Explanation: The atomic mass equals the sum of the number of protons and the number of neurons.

Human factors contributed to climate change through the usage of CFC's common in sprays, aerosols, refrigerant in air conditioners and other manufacturing industries that thins out the ozone layer thereby lessenign the protection from the sun rays. CO2 charged form The non-human factors are volcanic eruptions, solar output and heat generating natural processes. ways to reduce human impact are (1) reduce the use of sprays, aerosols esp. with CFCs; (2) become energy efficient and (3) reducing your wastes.