Answer:
A commercial site might have reliable information, you have to be extra careful because commercial sites promote businesses, products, or services, so the content is likely to be biased toward whatever is being promoted. Once you have looked at the overall website, look at who wrote the article you are interested in. The article should include the author’s name, qualifications, and contact information. Consider whether the author is an expert on the subject matter and whether the author is qualified to write about it.
Explanation:
Answer: 1. They shake the ground
2. They travel through solids
3. They vibrate from side to side
Explanation: Hope this helps!
