Samacheer Kalvi 9th Science Solutions Chapter 9 Universe

Samacheer Kalvi 9th Science Solutions Chapter 9 Universe Tamilnadu Samacheer Kalvi 9th Science Solutions Chapter 9 Universe Samacheer Kalvi 9th Science Universe Textbook Exercises I. Choose the correct answer. Question 1. Who proposed the heliocentric model of the universe? (a) Tycho Brahe (b) Nicolaus Copernicus (c) Ptolemy (d) Archimedes Answer: (b) Nicolaus Copernicus Question 2. … Read more