ENVIRONMENT
создатель Trần Ngọc Mỹ Hoàng
1. Mountain
1.1. Hill
1.2. Landslide
1.3. High
1.4. Canyon
2. Air
2.1. Breathe
2.2. Fresh
3. Animals
3.1. Chickens
3.1.1. Egg
3.1.2. Meat
3.2. Snake
3.2.1. Reptiles
3.3. Fish
3.3.1. Paddle
3.3.2. Gill
3.4. Cow
3.4.1. Help people
3.4.2. Milk
3.4.3. Plow
3.4.4. Meat
4. Soil
4.1. Rock
4.2. Building
4.3. Plant tree
4.3.1. Coconut tree
4.3.2. Pine
4.3.3. Plum tree
4.4. Breed
4.5. Erosion
5. Sunny!
5.1. Health
5.2. Light
5.2.1. Glow
5.2.2. Beam of light
5.2.3. Twinkle
5.3. Life
6. Water
6.1. Fall
6.2. A marin ecosystem
6.3. Conserve
6.3.1. Biodiversity
6.4. Ground water
7. Pollution
7.1. Contaminate
7.2. Pollutant
7.3. Damage
7.4. Absorption
8. Plant
8.1. Bush
8.2. Forest
8.2.1. Jungle
8.2.2. coniferous forest
8.3. Fungus
8.4. Flowers
8.4.1. Rose
8.4.2. Cherry Blossom