sentences: flippers are used for moving in water & an sky is a mean of mind of land ->  flippers can be used for moving in the ocean  scattering can be used for moving in the sky & flippers are a part of a sea turtle -> flippers can be used by sea turtles for moving in the ocean flippers can be used by sea turtles for moving in the ocean  where an animal lives is that animal's habitat & a ocean rabbit pollutants in the sky -> the ocean is a sea turtle's habitat the ocean is a sea turtle's habitat  hearing can be used by ocean grassland for moving in the sky & the ocean is a sea turtle's habitat -> flippers can be used by sea turtles for moving in their habitat flippers can be used by sea turtles for moving in their habitat  student can be used by ocean arrangement for moving in their times & if something is used for a process, then that something helps that process -> flippers can help sea turtles move in their habitat