Complete this paragraph by selecting the most relevant and trustworthy sources.
planting trees is very important. according , planting trees can benefit everyone. besides providing shade, trees give us oxygen and to clean the air of states that an acre of trees absorbs as much co2 as your car produces every 26,000 miles!

1st box
the national tree society website or the treemania

2nd blank
the environmental science research newsletter or the big branch tree seeds catalog