There is no passage and answer choices, so it is impossible to answer this question. I apologise.
There are several ways in which scientists attempt to eliminate mistakes and fake results from their research. For example, the use of the scientific method allows scientists to experiment (in most cases), which allows them to see whether their results can be replicated in real life.
Another method is through peer-reviewing systems for scholarly review. This means that scientists check each other's work to make sure it meets some quality standards. Also, it is a way to stop incomplete or erroneous information from spreading.
Answer:
I’m not sure if the quote is from a specific story, but unless the character is literally deaf in it, this is an example of metaphor.
Explanation:
A metaphor is when a word, phrase, etc. is used as a symbol or means something besides it’s literal meaning.
Answer:
I would say the effects of high-fat and low-fat diets.
Explanation:
For [A] a report on how to reduce air pollution would be expository or persuasive.
For [B] a mystery story would be entertaining and engaging.
For [C] why Great Britain was the birthplace of the industrial revolution would be a persuasive exposition, factually based.
For [D] you would write and exposition comparison to describe the benefits and detriments of the two types of diets, thus a "compare-and-contrast" essay.
Cheers.