You are presented with the quiz "What does weathering do?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "sediment is formed by weathering" and "sand and mud are examples of sediments". So, what's the best answer to the question?
OPTIONS:
- protect them
- form sand
- form plants
- It expands
- form snow
- form fossils
- Metling snow
- watershred

Answer: form sand

You are presented with the quiz "How many sections does a fish heart have?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "fish have a circulatory system with a two-chambered heart" and "mammals have a four-chambered heart". So, what's the best answer to the question?
OPTIONS:
- ovum
- fat
- four
- p53
- two
- cut
- bone
- stem

Answer: two

You are presented with the quiz "What can sense pressure?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "touch is the ability to sense pressure" and "nerve damage that causes a reduction in the ability to feel touch or pain is very dangerous". So, what's the best answer to the question?
OPTIONS:
- thermometers
- pressure cookers
- sharks
- fur seals
- nerves
- animals
- humans
- skin cells

Answer:
nerves