Green plants
Tiger
Cow
Peacock
Arctic forests
Tropical rain forests
Temperate forests
Coniferous forests
Tidal energy
Geothermal energy
Solar energy
Atomic energy
Aquarium
Agriculture land
Pisciculture tank
Zoo
Equatorial evergreen forests
Taiga forests
Mid-latitudes mixed forests
Mangrove forests
Hydrological cycle
Nitrogen cycle
Hydrogen cycle
Carbon cycle
Ultraviolet radiation
X-rays and Gamma rays
Infrared radiation
Visible light
Habitat
Decomposer
Consumer
Producer
Autotrophs
Heterotrophs
Synthesizers
Producers
Hydrocarbon
Carbon monoxide
Carbon dioxide
Nitrogen
