កំណែផែនដី ថ្នាក់ទី១២

Earth and Ecology Grade 12

This program is designed for 12th grade students who want to study Earth Science and Ecology. It helps students learn easily and quickly, with detailed content and practical questions in each chapter.

Content in the program includes:

Chapter 1: The Earth
- Mineral resources
- Rock
- Degradation and soil formation
- Erosion and Accumulation
- Question at the end of Chapter 1

Chapter 2: Globalization
- The planet
- Earth and sun location
- Global gravity and planetary motion
- Earth's moon
- The sun
- Planets in the solar system
Small entities in the solar system and clouds
- History of the solar system
- Question at the end of Chapter 2

Chapter 3: Stars, galaxies and universes
- Global research
- Stars will
Star and galaxy systems
- The expansion of the universe
- Question at the end of Chapter 3

Chapter 4: Global Environmental Issues
- Biochemical cycle
- Fossil fuels
- Firewood
- Other energy
- Global warming
- Population growth
Pollution or contamination
- Ozone depletion
- Waste
- Environmental sustainability
- Cooperation
- Question at the end of Chapter 4

✅ Content is clear and easy to read
✅ There are questions and practice exercises in every chapter
✅ Clear text, easy to understand, suitable for personal study
✅ Suitable for people aged 14 and over

The app contains advertisements (Admob, Facebook Audience Network, Ironsource, Pangle) to support app development.

📧 Contact: [email protected]