About the importance of trees?

The birch tree is...

• Red

• Brown

• White

• Green

The wood protecting the tree is called the...

• Dark

• Bark

• Track

• Slack

Amazonia is located in ...

• South-America

• Central America

• North America

• Europe

Amazonia is called...

• the heart of the Earth

• the brain of Earth

• the lungs of the Earth

• the roof of the Earth

Amazonia's type of forest is ...

• a tropical forest

• a rainforest

• a temperate forest

• a Boreal forest

It is said that Amazonia produces ... of the planet's oxygen

• 5%

• 10%

• 15%

• 20%

That specific part of the tree is the...

• shrunk

• trunk

• bunk

• dunk

This part of the forest is called...

• evergreen

• undergrowth

• green bed

• thick green

This natural phenomena is called...

• oxygen synthesis

• CO2 synthesis

• photosynthesis

• light synthesis

There are different functions or important aspect with trees, this one is ...

• the well-being aspect

• the protective aspect

• the ecological aspect

• the recreational aspect