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.
 
        
             
        
        
        
Shakespeare shows the character's point of view by 
B. figurative language
Explanation:
The Shakespearean language is some of the richest and the most figurative and thus it is most enduring out of many playwrights. 
He deftly uses the themes and the motifs of the world around him to craft a language that is easily understandable and the characters seem motivated by things that audience can understand. 
His rich figurative language takes its cues from the characters' emotional state and the environment they are in.
 
        
             
        
        
        
The correct answer is A. Compound object
Explanation:
In grammar, the object refers to the entity that is being affected by the subject (agent of the action) and the main action or verb. This means the object is the entity being acted upon and usually placed after the main action or verb. Additionally, a sentence with a compound object is one that contains two or more objects usually linked by coordinating conjunctions such as "like", "and", "or" and "neither". 
In the case of the sentence "Mrs. Khan likes baseball and softball" the subject or agent that performs the action is "Mrs. Khan" the main action is "likes" and the object or entity being acted upon is "baseball and softball" which is composed by two objects or ideas separated by the coordinating conjunction "and". Considering the object of this sentence is composed of two ideas it can be concluded the object "baseball and softball" is compound. Therefore, the type of compound the sentence "Mrs. Khan likes baseball and softball" contains is a compound object.