Teacher:You are given a short paragraph, a question and two choices to answer from. Choose the correct answer based on the paragraph and write the answer(not the key).
Teacher: Now, understand the problem? Solve this instance: Paragraph: As greenhouse gases increase, changes will be more extreme.
 Question: When we have a lot of greenhouse gases in the air what happens to the temperature? 
 Choices: A)increases 
B)stays the same
Student:
increases