Q: You are presented with the quiz "What causes cancer?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "most carcinogens cause cancer by producing mutations in DNA" and "asbestos is a dangerous carcinogen". So, what's the best answer to the question? | OPTIONS:
- the skin
- smoking
- Pollution
- cigarettes
- Asbestos
- Eating too much
- Potatoes
- buffalo sauce
A: Asbestos

Q: You are presented with the quiz "What can be a major threat to health?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "using a car causes pollution" and "air pollution Air pollution is a major threat to health". So, what's the best answer to the question? | OPTIONS:
- bicycling
- using a car
- smoking
- skateboarding
- viruses
- Dehydration
- influenza
- doctors
A: using a car

Q: You are presented with the quiz "What is required to remove creatinine from the body?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "nephrons are the structural and functional units of the kidneys" and "when kidney function is normal, creatinine is removed from the body by the kidneys". So, what's the best answer to the question? | OPTIONS:
- evaporation
- adding heat
- Dehydration
- sleep
- sweating
- nephrons
- glucose
- hydration
A: nephrons

Q: You are presented with the quiz "What generally has a negative impact on the environment?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "landfills have a negative impact on the environment" and "an example is a dump or landfill". So, what's the best answer to the question? | OPTIONS:
- mold
- schools
- deserts
- dumps
- drought
- disease
- recycling centers
- thrift stores
A: dumps