Is It Likely A Green Frog Will Drown In A Recessed Cement Pond Which Contains No Water Plants?
If the pond has no water and plants and there are no rocks or any other thing which enable frogs to come out then it is possible that your frog will be unable to come out. If the pond contains water then he can swim. Pond plants and rocks in the ponds which decrease the direct depth of the pond can also enable your frog to come out if he fell.