You are presented with the quiz "Which natural process can cause erosion?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "heavy rains cause flooding" and "heavy rains can cause erosion". So, what's the best answer to the question?

OPTIONS:
- rivers
- Earthquakes
- ice wedging
- Flooding
- coastlines
- Tornados
- wind
- Volcanos

Answer: Flooding
Problem: OPTIONS:
- winter
- break off
- Inches
- cold
- autumn
- spring
- fall permanently
- nothing
Q: You are presented with the quiz "Earth 's tilt on its rotating axis causes fall to change to what?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "earth 's tilt on its rotating axis causes seasons to change" and "during that time the seasons change from fall to winter to spring to summer". So, what's the best answer to the question?
Answer: winter
Problem:OPTIONS:
- compact
- improve
- nutrients
- destroy
- erosion
- support
- decrease
- Movement

You are presented with the quiz "Deep burrowing earthworms do what to the looseness of soil for root growth?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "the looseness of soil has a positive impact on a plant 's roots' growth in that soil" and "deep burrowing earthworms improve soil porosity, water movement and plant root growth". So, what's the best answer to the question?
****
A: improve
You are presented with the quiz "How do we track canyon changes?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "most canyons are formed by flowing rivers through erosion over long periods of time" and "erosion was monitored by means of erosion pins". So, what's the best answer to the question?
OPTIONS:
- LEDs
- wind
- forces
- river
- slow
- Pins
- Raft
- three
Pins
You are presented with the quiz "What doesn't protect plants?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "apesticide is used for protecting plants by killing insects" and "plants are poisoned by herbicides, animals by pesticides". So, what's the best answer to the question?
OPTIONS:
- viruses
- smallpox
- herbicide
- steroids
- A virus
- Nematoda
- chickenpox
- cigarettes

Answer: herbicide
input with options: You are presented with the quiz "What has a positive impact on where organisms live?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "recycling has a positive impact on the environment" and "organisms live in environments". So, what's the best answer to the question?
OPTIONS:
- nutrients
- Green beans
- exercise
- deforestation
- tornadoes
- recycling
- habitat removal
- animals
output:
recycling