Options two refers to the author being a teenager himself so he would be reliable for this info because it is firsthand.
The answer to your question is True!
1. Valid. The statement shows that if rock comes from Venus, it doesn't contain silicon. Rocks came either Mars or Venus. SO when rock contains silicon, it came from Mars not Venus.
(If Venus, then NOT silicon)
(Venus OR Mars)
(Silicon)
(Mars; Valid)
2. Invalid. It is not true that people with happiness must have a lot of money. The first premise is a false premise. Secondly, it is not true that people earn a lot of money with hard working. The second premise is also a false premise. Therefore this is an invalid statement.
Hope this help you
Answer:
Don't cite when you are stating common knowledge.
Examples of information that would not need to be cited include: The Declaration of Independence was signed in 1776. Barack Obama became the 44th president of the United States in January, 2009
Explanation:
