It's a gas that trees absorb.
What is carbon dioxide?
It's a thin sheet material produced from cellulose.
What is paper?
It is when trees and plants breathe in CO2 and breathe out O2.
What is photosynthesis?
It's a plant's green pigment that absorbs light.
What is chlorophyll?
It is called deforestation.
How do we call the decrease in forest areas across the world?
It is called desertification.
What is it when fertile soil turns into dryland because of cutting trees out?
They absorb water containing nutrients.
What is the function of roots?
It is a flat, thin part of a plant that uses the sun to make its own food.
What is a leaf?
It's the outer layer of the trunk!
What is bark?
It is called Methuselah, it's a bristlecone pine.
What is the oldest tree on Earth?
It's a gas that animals (which includes humans) breathe in.
What is oxygen?
It's a movable equipment used to make a house, office, or other space suitable for living or working.
What is furniture?