You are presented with the quiz "what would be protected from a wild fire?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "if an animal lives under ground then that animal will be protected from a wild fire" and "most shrews live on or under the ground, searching through the vegetation for food". So, what's the best answer to the question?
OPTIONS:
- amoebae
- shrews
- trees
- bullfrogs
- tunicates
- Lobsters
- organisms
- Oak

Answer: shrews

You are presented with the quiz "What causes holes in the ozone?" 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 "harmful emissions from cars are largely responsible for the giant holes in the ozone layer". So, what's the best answer to the question?
OPTIONS:
- Thunderstorms
- flooding
- Pollution
- Sun damage
- vaporization
- influenza
- rays or beams
- Wind

Answer: Pollution

You are presented with the quiz "What harms the respiratory and circulatory systems?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "air pollution harms the respiratory and circulatory systems" and "cars are a significant source of air pollution". So, what's the best answer to the question?
OPTIONS:
- oil
- rain
- sulfur
- cars
- tires
- coal
- tar
- bicycles

Answer:
cars