The _________________ lies off Australia's northeast coast and is an extension of the Pacific Ocean

The body of water that lies off Australia's northeast coast and is an extension of the Pacific Ocean is called the Coral Sea. Here's how you can find this information:

1. Open a web browser on your device.
2. In the search engine's search bar, type "body of water off Australia's northeast coast" and hit Enter.
3. Look for authoritative sources such as geographical websites, encyclopedias, or official government websites.
4. Click on a relevant link that provides information about the topic.
5. Scan the page for details about the body of water off Australia's northeast coast.
6. In this case, you will find that the answer is "Coral Sea."

Remember, double-checking information from multiple reliable sources is always a good practice to ensure accuracy.