Answer:
Its formation is a result of the refraction and the total internal reflection of light in the air. To investigate the formation of a mirage, we firstly need to understand why light is refracted in the air. Regions of air at different temperatures have different refractive indexes, just like many different mediums.
Explanation:
You should avoid being under tall trees and also near power lines during a thunder storm so both a and b could be dangerous during a thunder storm also if you are under tall trees and thunder strikes you are more likely to get third degree burns or most likely to die. did this help?
The correct answer is C. Secondary sources lack medical expertise.
Explanation:
The excerpt presented focuses on providing recommendations to determine whether a source is reliable or not, especially when dealing with sources related to health. In this text, the author specifies that it is necessary to evaluate the data of sources "try to determine whether the information is supported by evidence from scientific studies, other data, or expert opinion".
Also, the author refers to secondary sources such as internet sites and about this it clarifies these are based on interpretations "relying on another person's interpretation" and might lack of expertise in the area "it lacks the expertise of a medical journal or a national organization specializing in that field of cancer", which suggest secondary lack credibility and should not be used. According to this, the statement that summarizes the passage, especially about secondary sources is "Secondary sources lack medical expertise".
