Use "be incumbent upon" em uma frase

1. How you intend dealing with situations should be incumbent upon you

2. "Ought it not be incumbent upon ships to have an operator always at the key?"

3. Meteorology is a science of so much general concern, that it seems to be incumbent upon every member of society to aid in augmenting the stock of facts, which the labours of ingenious and scientific men have already accumulated on that subject