NEB NotesNepal
Env.413 • Class 11science Stream2 Lessons
Credit Hours: 5

Environment Science (Grade 11)

वातावरण विज्ञान (कक्षा ११)

Earth as a Closed System, Ecology & Population Dynamics, Natural Resource Management, Environmental Pollution & Standards, Disaster Risk Management.

Prescribed Chapters

Showing 2 Lessons
Unit 1

Earth as a Closed System & Ecology

1 Lesson
Lesson 1Notes Ready ✓12 Solved Q&A

Earth as a Closed System & Ecology

बन्द प्रणालीको रूपमा पृथ्वी र पारिस्थितिकी

Earth system spheres (atmosphere, hydrosphere, lithosphere, biosphere), thermodynamic closed system, ecosystem energy flows, K-selected vs r-selected populations.

Unit 4

Environmental Pollution & Quality Standards

1 Lesson
Lesson 4Syllabus Mapped1 Important Qs10 Solved Q&A

Environmental Pollution & Quality Standards

वातावरण प्रदूषण र गुणस्तर मापदण्डहरू

Air pollution, water pollution, WHO drinking water guidelines (Arsenic standard 0.01 mg/L / 0.05 mg/L Nepal standard), soil pH, disaster risk management cycle.