What does this picture represent?
Fossil fuels
What does this picture represent?
Endangered species
What does this picture represent?
Global warming
What does this picture represent?
Deforestation
What does this symbol represent?
Recycling
What does this picture represent?
Solar energy
What does this picture represent?
Wind power
What does this picture represent?
Tree planting
What does this picture represent?
Greenhouse gases
What does this picture represent?
Conservation
What does this picture represent?
Sustainability
What does this picture represent?
Pollution
What does this picture represent?
Public transportation
What does this picture represent?
Energy saving