"man bites dog," a commonly used headline in beginning journalism classes, suggests that news becomes news when it is what?

Extraordinary

Explanation:

The headline"man bites dog" is an abbreviated account of the phrase:

"When a dog bites a man, that is not news, because it happens so often. But if a man bites a dog, that is news", attributed to both Alfred Harmsworth (1865–1922) and Charles Anderson Dana (1819–1897).

It refers to the way unusual events, like a man biting a dog, are more newsworthy than ordinary ones, with comparable results, like a man bitten by a dog.

using the scientific method.

the secretary of state, appointed by the president with the advice and consent of the senate, is the president's chief foreign affairs adviser. the secretary carries out the president's foreign policies through the state department and the foreign service of the united states.