When analyzing a source, what strategy would be best to determine if a topic is biased?

Why has this work been written?

Who is the audience and what is the message?

Is it sponsored? Has a group or company paid the author to make these claims? Consider, for instance, lobby groups, special interest groups, corporate entities etc.

Is it biased? Is the author affected by political, social, economic, environmental, religious, cultural, personal or any other bias?

Explanation:

Paying attention to the evidence, facts, and overall tone of the topic.

Explanation: read the topic determine if it sounds overly opinionated.

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the oceanic zone is typically defined as the area of the ocean lying beyond the continental shelf, but operationally is often referred to as beginning where the water depths drop to below 100 meters (328 feet), seaward from the coast to the open ocean.

explanation: