The correct answer would be D., Charles Darwin because he was the on who made major discoveries about evolution.
Answer:
A. The theory that the Sun is the center of the universe
Explanation:
Unquestionably, the Heliocentric Revolution is among the most important scientific breakthroughs ever. It involved the systematic replacement of the more recent Heliocentric Model, which accorded the sun global priority, with the earlier Geocentric Model, which put Earth at the center of the universe. From a philosophical standpoint, this would also alter how Western philosophers would need to redefine our significance in the cosmos. By casting doubt on their alleged infallibility in the sciences, it would politically undercut the influence of established religion, which supported the Geocentric model to a great extent.
<u>"confirming that it is not an online source" </u>is wrong. The problem is not the fact the source is online, but if it's credible.
<u>"determining whether or not it is well-known" </u>well-known sources might still be wrong. Being known does not make something true.
<u>"d. determining whether it is a secondary source" </u>again, it has nothing at all to do with the validity of the source.
So the answer is:
b. checking its conclusions against other sources
The best way is to check the source and compare to different ones that talk about the same subject. Comparing different conclusions of different authors and seeing different points of view about the same thing is often the best way.
The Iran Hostage Crisis made Carter look bad because it was dragged on for a longer time than the U.S. thought it would