Problem: 
Q: Answer the following question given this paragraph:   Photosynthesis is the process by which plants use energy from sunlight to synthesize carbohydrates.   Q: What is the name of the process by which plants use energy from sunlight to synthesize carbohydrates?   A:
Answer: photosynthesis
Problem: 
Q: Answer the following question given this paragraph:   Earth is a giant magnet with north and south magnetic poles and a magnetic field called the magnetosphere. Evidence in rocks shows that Earth’s magnetic poles switched positions hundreds of times in the past. Scientists think that Earth’s magnetic field is caused by the movement of charged particles through molten metals in the outer core.   Q: The magnet field of earth is called what?   A:
Answer: magnetosphere
Problem: 
Q: Answer the following question given this paragraph:   Smoking is the most significant cause of respiratory disease as well as cardiovascular disease and cancer. Exposure to tobacco smoke by smoking or by breathing air that contains tobacco smoke is the leading cause of preventable death in the United States. Regular smokers die about 10 years earlier than nonsmokers. The Centers for Disease Control and Prevention (CDC) describes tobacco use as "the single most important preventable risk to human health in developed countries and an important cause of [early] death worldwide. ".   Q: What is the most significant cause of respiratory disease as well as cardiovascular disease and cancer?   A:
Answer:
smoking