Look at the advertisement. What is it for? What might the missing words be?

Do you want to help save the 1) ...... from the comfort of your home? Adopt a tree and help us save different 2) ...... around the world. With every 3) ..... , you receive an information package and a free 4) ...... to our organization. Whatever your 5) ...... , we're got the perfect package for you!
For more 6) ...... , send us an email at
TreeLoversFoundation@jmail.org.
Apply today!