How has atomic research impacted science, society, and the environment? (Please answer in a couple sentences)

In which layer of earth do most earthauakes occur a_ inner core b_outer core c_mantle d_crust

For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)

The equation picture below shows which type of nuclear reaction u 235 + n x e 134 + sr 100 + 2n