Tap the word that "them" refers to.
Listening to the
Rainforest
by John Crossingham
Rainforests are well known for being hot spots for
biodiversity. In other words, if you're looking for lots of
creatures both in terms of total numbers and species
variety-these habitats are where you want to be. It's one
of the biggest reasons why activists want to keep them
safe and healthy. Another reason-one we should all care
about--is that rainforests play a role in keeping our planet
healthy by absorbing harmful carbon dioxide and
releasing oxygen, which we need to survive