Who was the 46th president of the united states

Which of these innovations led to increased production in american factories in the early 1800s? a. the use of interchangeable parts b. the construction of canals c. the invention of the mechanical reaper d. the availability of electricity

Which statement describes the central idea of the text? a. while the nigerian government has the wealth to improve the conditions in prisons, they continue to view it as a low priority. b. nigerian prisons neglect the physical and mental health of their prisoners by failing to provide them with basic necessities and services. c. the inhuman conditions in nigerian prisons could easily be improved, but the environment is considered part of prisoners' punishment. d. conditions in nigerian prisons are slowly improving as non-government organizations and citizens are providing much-needed equipment to the prisons.

What notable contributions to science has sandia national labs (snl) produced over the years?