Alfred Wegener proposed his theory of continental drift by citing three main pieces of evidence: first, the jigsaw-like fit of the continents, particularly South America and Africa; second, the distribution of similar fossils across widely separated continents, such as the Mesosaurus found in both South America and Africa; and third, geological similarities, including matching rock formations and mountain ranges found on different continents. These observations suggested that the continents were once joined together in a supercontinent before drifting apart.
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becatuse theoy souocokt
The heliocentric theoy was generally accepted after Newton linked up Kepler's three laws to the law of gravity and the laws of motion. Other strong evidence was the discovery that the Suns is far more massive than all the planets, and finally in the 19th century the discovery of stellar parallax, stars moving slightly as the Earth moves round its orbit.
A theory is proposed after many, many, many experiments have been perofrmed to such a degree that it appears that something has been proven, but a theory isnt set in stone. Hiwever, it is the most set in stone thing that we can come up with in science, so it may as well be.
john dalton atom is from bigger atom into smallest atom can broken it into smallest piece / part same too atom