The Origin and Evolution of Earth – Chapter 2 Geography NCERT Class 11
1. Multiple choice questions. (i) Which one of the following figures represents the age of the earth? (a) 4.6 million years (b) 13.7 billion years (c) 4.6 billion years (d) 13.7 trillion years (ii) Which one of the following has the longest duration? (a) Eons (b) Period (c) Era (d) Epoch (iii) Which oneRead More →









