What are trees good for?, Trees are good for us, What air do we use to live?, We use oxygen to live, What gas is bad in the air?, Carbon dioxide is bad, What do trees clean?, Trees clean the air, What do trees put into the air?, Trees put oxygen into the air, What do trees take from the air?, Trees take carbon dioxide, What do trees protect us from?, Trees protect us from rain, What makes the ground strong?, Roots make the ground strong, Where can other plants grow?, Other plants grow near trees, What can we do in trees?, We can play in trees

Chapter 5_Tree

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