The following sentence is in active voice.
Hello. You did not enter the text to which this question refers, which makes it impossible for it to be answered. However, I will try to help you in the best possible way.
The main idea of a text is the main subject that the text addresses, the subject on which all the arguments presented are based. You will be able to understand this idea by reading the full text and identifying what the text is about. In this case, the key sentence of the text is the sentence that presents this subject in the most direct way possible. Generally, the main idea and the key sentence of the text are presented in the first paragraphs.
To develop the main idea, the text presents details, which are sentences that support this idea, showing how it is relevant and why it is true. These details are present throughout the text.
Pollution interferes with the functioning of body systems, allowing malefic substances to come into contact with the body and be absorbed, acting in the body in a harmful way, fighting health.
Explanation:
Metaphor is a figure of speech in which a word or phrase is applied to an object or action to which it is not literally applicable.
Personification is the use of human actions/movements in a non-living or non-human object or thing.
Irony means the expression of one's meaning by using language that normally signifies the opposite, typically for humorous or emphatic effect.
Hyperbole means the use of exaggeration in a sentence.
Ask yourself these:
"What does the sentence mean the most?"
"What word brings the sentence imagery?"
Hope this helps <3