Texas shoe factory relies heavily on the use of fossil fuels to power her machinery. The owner of the factory wishes to make her company more environmentally friendly by increasing her use of renewable energy resources; however, she is uncertain which resources to use. What question should the owner consider first to determine which alternative resource would be best to use in her factory

Answer/// he concludes that the atom particles can be broken due to the paddle wheel being moved by particles coming out of the metal;

Iam pretty sure that the answer is d

Answer//the law of conservation of mass.;

Radon-222 or rn-222 has a half-life of 3.82 days. to determine the fraction of an original sample of rn-222 that remains unchanged after 7.646 days, we calculate the amount of rn-222 remaining after 7.646 days and divide it with the original amount. using 1 gram as a basis and using half-life calculation methods, we can determine that  0.249 or 0.25  grams of rn-222 will remain, and thus the fraction remaining is 0.25 or 1/4.