Q: You are presented with the quiz "What is formed by rivers flowing over 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:
- soil
- cracks
- thrust
- rain
- biome
- spring
- potash
- tube

A: soil

Q: You are presented with the quiz "What uses playing as just one of many ways to learn how to behave?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "playing is just one of many ways that mammals and other animals learn how to behave" and "after all, seals are mammals just as humans are mammals". So, what's the best answer to the question?

OPTIONS:
- athletes
- Toys
- sharks
- Humans
- Video games
- exercise
- people
- A.I

A: Humans

Q: You are presented with the quiz "What are metals good at?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "if heat is conducted to an object then that object will become hot" and "metals conduct heat well". So, what's the best answer to the question?

OPTIONS:
- to move people
- power
- cooling
- voltage
- polarizing
- electricity
- conducting
- magnetizing

A: conducting

Q: You are presented with the quiz "a point what allows for both asexual and sexual reproduction?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "alternation of generations allows for both asexual and sexual reproduction" and "if a single base is altered, a point mutation is generated". So, what's the best answer to the question?

OPTIONS:
- trees
- graptolites
- barnacles
- orchids
- Summer
- mutation
- Most plants
- pine

A:
mutation