Fun fact: CO2 makes up only .04% of the atmosphere.

bUt hOw cAn wE TelL tReEs dO aNyTHinG!?

Where do trees come from?

The ground.

Wrong! Trees grow IN the ground. Trees come FROM the air. All of the structure of the tree is made of the carbon the tree pulled from the air. (thank you Professor Feynman for explaining that)

Fun fact: CO2 makes up only .04% of the atmosphere.

bUt hOw cAn wE TelL tReEs dO aNyTHinG!?

Where do trees come from?

The ground.

Wrong! Trees grown IN the ground. Trees come FROM the air. All of the structure of the tree is made of the carbon the tree pulled from the air. (thank you Professor Feynman for explaining that)