(Question)
Answer the following question given this paragraph: Secondary pollutants are formed when primary pollutants interact with sunlight, air, or each other. They do not directly cause pollution. However, when they interact with other parts of the air, they do cause pollution. For example, ozone is created when some pollutants interact with sunlight. High levels of ozone in the atmosphere can cause problems for humans. Q: What are formed when primary pollutants interact with sunlight, air, or each other? Choices: - cross pollutants - typical pollutants - secondary contaminants - secondary pollutants A:
(Answer)
secondary pollutants

(Question)
Answer the following question given this paragraph: In eukaryotic cells, the start of transcription is one of the most complicated parts of gene regulation. There may be many regulatory proteins and regulatory elements involved. Regulation may also involve enhancers. Enhancers are distant regions of DNA that can loop back to interact with a gene's promoter. Q: Which is one of the most complicated parts of gene regulation in eukaryotic cells? Choices: - middle of transcription - aftermath of transcription - end of transcription - start of transcription A:
(Answer)
start of transcription

(Question)
Answer the following question given this paragraph: So what happens to your body's wastes? Obviously, you must get rid of them. This is the job of the excretory system. You remove waste as a gas (carbon dioxide), as a liquid (urine and sweat), and as a solid. Excretion is the process of removing wastes and excess water from the body. Q: What body system gets rid of waste? Choices: - digestive system - Muscular system - nervous system - excretory system A:
(Answer)
excretory system