Rainforests: Earth's Vital Ecosystems

What percentage of Earth's surface do rainforests cover?

• Two to six percent

• Ten to fifteen percent

• Twenty to thirty percent

• Thirty to forty percent

Which layer of the rainforest is primarily responsible for decomposition?

• Emergent layer

• Canopy layer

• Understory

• Forest floor

Where are the largest rainforests located?

• Antarctica

• South America and Africa

• Europe and Asia

• Australia

What type of rainforests are characterized by high temperatures and humidity?

• Temperate rainforests

• Tropical rainforests

• Arid rainforests

• Polar rainforests

Which initiative encourages countries to reduce carbon emissions from deforestation?

• UNESCO World Heritage Program

• United Nations’ REDD initiative

• Global Biodiversity Framework

• International Climate Accord