In the 19th century, theories of race moved from religious-based racism to:

The correct answer is "scientific based racism."

During the 19th century, several scientists were out to prove that African-Americans were biologically inferior to white Americans. This study of facial characteristics, body composition, and other genetic factors was developed in order to give definitive prove of white racial superiority.

Even though this concept has been disproved several times over, groups or organizations with an agenda that is considered racist may use information from this faulty science in order to justify their actions.

hi there!

question - in the 1900s there were two competing views about the environment that often pitted industrialist and conservationist against one another. how were these two competing views demonstrated by the environmental policies of president roosevelt and president taft?

theodore had a quicked tempered personality while president taft was shy and barely noticable.theodore had started a dealing service with big companies which president taft completed.both were into making sure workers were always safe.president taft took the presidency more serious than theodore did.both loved to save nature.

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Ibelieve b because alexander graham bells wife’s and mother was deaf. hope this you out