sentences: if a body of water loses all water then that body of water does not exist any more & a pond is a kind of body of water ->  if a pond loses all water then that pond does not exist any more  if a pond loses all water then that pond does not exist any more & drought is when available water decreases in an environment ->  a drought can cause a pond to no longer exist  a drought can cause a pond to no longer exist & if an animal 's habitat no longer exists then that animal will die ->  a drought can cause animals that live in ponds to die  aquatic animals live in bodies of water & a pond is a kind of body of water ->  aquatic animals live in ponds  aquatic animals live in ponds & a frog is a kind of aquatic animal ->  a frog is a kind of aquatic animal that lives in ponds  a frog is a kind of aquatic animal that lives in ponds & an aquatic animal is a kind of animal ->  a frog is a kind of animal that lives in ponds  a drought can cause animals that live in ponds to die & a frog is a kind of animal that lives in ponds ->  a drought can cause frogs to die  causing an animal to die has a negative effect on that animal & a frog is a kind of animal ->  causing a frog to die has a negative effect on that frog  a drought can cause frogs to die & causing a frog to die has a negative effect on that frog -> droughts have a negative effect on frogs