Q: A catalytic converter filters pollutants in exhaust created by burning what before releasing it into the air? Choices: - carbon dioxide - noble gas - fossil compounds - fossil fuels A:
fossil fuels

Q: What disease associated with smoking involves breakdown of walls of the alveoli, resulting in less gas exchange by the lungs? Choices: - leukemia - cancer - pneumonia - emphysema A:
emphysema

Q: Portable amplifiers have batteries that store what type of energy? Choices: - kinetic energy - mechanical energy - carbon energy - chemical energy A:
chemical energy

Q: What events, resulting in death of over half of animal species, have occurred on earth at least five times in the past 540 million years? Choices: - mass migrations - microevolutions - spontaneous mutations - mass extinctions A:
mass extinctions