Question: You are presented with the quiz "What can help decrease emissions?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "carpooling decreases the amount of cars used to travel to a place" and "cars and gasoline-burning engines are large sources of emissions". So, what's the best answer to the question?
OPTIONS:
- power
- exercise
- Carpooling
- Flying on airplanes
- Having children
- Eating red meat
- green manures
- electricity
Answer: Carpooling
input with options: You are presented with the quiz "what floor do organisms cluster around hydrothermal vents on?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "organisms cluster around hydrothermal vents in the ocean floor" and "largest of the oceans on Earth is the Pacific Ocean ". So, what's the best answer to the question?
OPTIONS:
- Pacific
- small ponds
- ground
- limestone
- sandstone
- loose soil
- atmosphere
- crust
output: Pacific
Q: You are presented with the quiz "Muscles require substances transported in the body by" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "oxygen is just one substance transported by the blood" and "active brains and muscles require more oxygen and nutrients". So, what's the best answer to the question?

OPTIONS:
- sugar
- food
- fibers
- fat
- neurons
- blood
- glucose
- bones

A: blood
input: OPTIONS:
- cells
- gills
- HIV
- skin
- immune
- rabies
- lungs
- Herpes Now, answer this question: You are presented with the quiz "What organ in the body can protect you from toxins?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "skin is used for protecting the body from harmful substances" and "natural toxins can be harmful too". So, what's the best answer to the question?
A:
output: skin
You are presented with the quiz "What can irradiation do?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "killing microorganisms in food can be used to extend the shelf life of that food" and "irradiation kills microorganisms that spoil food". So, what's the best answer to the question?

OPTIONS:
- Plant growth is reduced
- make food glow
- make food unsafe
- harm consumers
- depress neuronal excitability
- extend the shelf life of food
- major threat to health
- prevent heat loss

Answer: extend the shelf life of food
Q: You are presented with the quiz "what have 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 "landfill leachates and groundwater contamination". So, what's the best answer to the question?

OPTIONS:
- harmful substances
- groundwater contamination
- harvesting
- fish
- major threat to health
- Sulfur dioxide
- storms
- Greenhouse gases

A:
groundwater contamination