The person tried for heresy in 1633 for defending Copernicus and the heliocentric theory was:
a. Galileo
Explanation:
1. Galileo Galilei was a renowned Italian astronomer, physicist, and mathematician.
2. He strongly supported the heliocentric theory proposed by Copernicus, which stated that the Earth revolves around the Sun.
3. Galileo's advocacy for heliocentrism contradicted the geocentric view supported by the Catholic Church at that time.
4. As a result, he was brought to trial by the Roman Inquisition in 1633 on charges of heresy for his beliefs in heliocentrism.
5. Galileo was forced to renounce his views and spent the rest of his life under house arrest.
