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