Chapter 1: 

• teenagers, pollution, ozone layer, mass extinction, bleak, surrender, ancestors, oblivion, resourceful, quick-witted, loyal, huddled, odds, restore, glory

Chapter 2: 

• mission, tirelessly, generate, harnessed , noticed, surroundings, progress, efforts, pride, prove, technologies, tentacle, challenges, grateful, goal

Chapter 3: 

• preserve, occupied,astounded, expertise, greeted, empathy, positive, tackle, innovative, rampant, collaboration, gradually, beaming, concurred, momentum

Chapter 4: 

• unyielding, revitalized, landscapes, former, accomplished, exclaim, acknowledge, crucial, radiant, unwavering, generations, profound, persistence, implement, pristine

Chapter 5: 

• healing, emerge, rogue, control, resources, disadvantage, conquest, off guard, fend off, defeat, threat, pooling, developed, fate, inhabitants

Chapter 6: 

• intense, advanced, combine, dodge, laser, adjustments, fiercely, raged, activated, sprang, regenerate, sudden, opportunity, unity, protect

Chapter 7:

• barren, teeming, toxic, fragrance, grinning, impossible, unique, handiwork, heroes, embrace, streaming, bravery, legacy, endure, teamwork

Chapter 8:

• recovery, established, educate, sustainability, repair, litter, chirping, desolate, vision, sources, recycling, minimize, blooming, nodded, strive

Chapter 9: 

• increase, dependence, populations, flourish, priority, reforestation, ecosystem, renowned, carbon footprint, ambassador, thrive, prosperous, lush, shimmer, gaze