You are presented with the quiz "Food consists of organic molecules that store heat where?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "food consists of organic molecules that store energy in their chemical bonds" and "basically, heat is energy". So, what's the best answer to the question?

OPTIONS:
- in their chemical bonds
- the rest of the body
- the environment
- by keeping them warm
- Earth orbiting the Sun
- Earth revolving around the sun
- it helps plants in growing
- the body's largest organ

Answer: in their chemical bonds

You are presented with the quiz "What makes the pupil change sizes?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "light enters the eye through an opening called the pupil" and "light enters the eye through the pupil, and the pupil is made larger or smaller by the iris". So, what's the best answer to the question?

OPTIONS:
- electrically
- sun's heat
- sweating
- It expands
- The iris
- nerves
- environment
- heat

Answer: The iris

You are presented with the quiz "he flow of heat into the system causes what?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "increasing heat causes thermal expansion" and "an increase in temperature is the result of the flow of heat into the system". So, what's the best answer to the question?

OPTIONS:
- thermal shields
- thermal detonation
- thermal expansion
- Plant growth is reduced
- chemical reaction
- Evaporation
- kinetic energy
- thermal heat

Answer: thermal expansion

You are presented with the quiz "what can you use to generate power to reduce greenhouse gases?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "using renewable resources to generate power reduces greenhouse gases" and "renewable resources include water, timber, wind". So, what's the best answer to the question?

OPTIONS:
- bamboo
- coal
- fibers
- watts
- energy
- fossil fuels
- trees
- wind

Answer:
wind