How is a duck adapted to help it survive in its environment?

Do you mean Adapt to their environment? If so, Webbed feet help them swim in a river or lake, a beak helps them eat organisms underwater, and feathers help keep it warm if the water is cold. That's all I know so far, I'll post more if I can.

Ok, I'm back, so here's some more of adapting to the environment.

Ducks have air sacks under their bellies. These act as little inflatables, helping a duck float on the water. They use their bills to clean their feathers, while spreading the body oils that make them inflatable at the same time.

There was another question about adapting to environments with ducks. You might want to spell check your questions - it would get answered a lot faster.