As an adult, yes. The young breathe through gills, as do all tadpoles.
No. They breath using their lungs or with their lungs, but not "through" their lungs. They do however breath "through" their blowholes (to get the air in and out of their lungs).
you breath it in and the air goes into your lungs and helps pump the blood around
Yes, they do have lungs as they need to breath air.
Reptiles breathe air - through their lungs.
We get rid of waste when we breath out and when we breath in we take oxygen in to our lungs and breath.
Yes, all penguins have lungs.
Whales breath air using their lungs.
yes
yes
birds do
Yes.
with lungs you breath air and with gills you breath in water