Chapter one Evolution of lnformation Science Satellite ncident Solar radiation Atmosphere i Forest Grass Bare Soil Paved Built-up Area Unit 2 a part 1 Notes to Text L Part4 Extensive Reading Part 2 Word Study Part5 Notes to Passage Part3 Practice on Text Part6 Practice on Passage 2021/2/20 P12021/2/20 P.1 Unit 2 Evolution of Information Science Chapter One @ Part 1 Notes to Text & Part4 Extensive Reading & Part 2 Word Study @ Part5 Notes to Passage @ Part3 Practice on Text @ Part6 Practice on Passage