Q: You are presented with the quiz "A plant requires what to grow?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "aplant requires nutrients to grow" and "nutrient density is the nutrient to calorie ratio of the food supply". So, what's the best answer to the question?

OPTIONS:
- sunlight
- freezing rain
- water floods
- soft voices
- food supply
- Energy.
- salt and water.
- direct energy

A: food supply

Q: You are presented with the quiz "What can break rocks and cause debris?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "breaking apart rocks can cause debris" and "erosion is the breaking apart and moving of rocks and soil". So, what's the best answer to the question?

OPTIONS:
- sand
- trees
- erosion
- wind
- Surf
- Earthworms
- flooding
- rivers

A: erosion

Q: You are presented with the quiz "astronauts require what food for extended flights?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "astronauts require preserved food for extended flights" and "most of the Shuttle foods are preserved by dehydration, which saves weight and storage space". So, what's the best answer to the question?

OPTIONS:
- Echinoderm.
- layers of fat
- dehydrated
- fresh
- hand picked
- nutrients
- frozen
- hydration

A: dehydrated

Q: You are presented with the quiz "What converts chemical energy into what we hear?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "afirecracker converts chemical energy into sound" and "hearing is the act of perceiving sound". So, what's the best answer to the question?

OPTIONS:
- Gunshots
- An object is seen
- a lightbulb
- ice
- sensory neurons
- a firecracker
- animals
- a stove

A:
a firecracker