You are presented with the quiz "Who can shiver?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "shivering occurs when many muscles contract a little bit all at once" and "honey bees generate heat by consuming honey and shivering their muscles". So, what's the best answer to the question?

OPTIONS:
- bats
- Sidewalks
- humans
- Bees
- koalas
- Mountains
- Trees
- people

Answer: Bees

You are presented with the quiz "what ingests sediment and extracts food particles?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "earthworms are important deposit feeders that help form and enrich soil" and "deposit feeders ingest sediment and extract food particles". So, what's the best answer to the question?

OPTIONS:
- animals
- soil
- humans
- a fish
- earthworms
- barnacles
- h2o
- bacteria

Answer: earthworms

You are presented with the quiz "What do rivers do to rocks?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "soil is formed by rocks eroding" and "rivers erode the rocks they flow over". So, what's the best answer to the question?

OPTIONS:
- storing water
- to move people
- they bend
- Make them get bigger
- It has no effect on rocks
- Polish them
- Turn it to soil
- protect them

Answer: Turn it to soil

You are presented with the quiz "what does rock erosion cause them to do?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "soil is formed by rocks eroding" and "soils are formed by breakdown of rock". So, what's the best answer to the question?

OPTIONS:
- turn gaseous
- secrete h2o
- breakdown
- become hydrogen
- they bend
- dangerous
- migrate
- watershred

Answer:
breakdown