Q: You are presented with the quiz "what uses eyes for seeing by sensing light?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "eyes are used for seeing by animals by sensing light" and "pigs are very intelligent animals". So, what's the best answer to the question?

OPTIONS:
- oak tree
- bears
- pigs
- humans
- clouds
- Whales
- the sun
- tigers

A: pigs

Q: You are presented with the quiz "what causes acid rain?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "the emission of sulfur dioxide causes acid rain" and "the sulfur dioxide is converted into sulfuric acid". So, what's the best answer to the question?

OPTIONS:
- gases
- rainfall
- Pollution
- fossil fuels
- emissions
- vehicles
- burning
- wind

A: emissions

Q: You are presented with the quiz "budding and fusion of vesicles in the Golgi complex involves what" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "vesicle transport requires energy, so it is also a form of active transport" and "transport of material in and out of the Golgi complex involves budding and fusion of vesicles". So, what's the best answer to the question?

OPTIONS:
- nektar
- movement
- chemicals
- energy
- a solute
- recycling
- Energy.
- heat

A: energy

Q: You are presented with the quiz "When is coal burning _ is given off" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "coal is used for generating heat by burning" and "cO 2 and SO 2 are both given off when coal is burned to provide heat or to generate electricity". So, what's the best answer to the question?

OPTIONS:
- CO 2
- energy
- vaporization
- SO2
- pollution
- oxygen
- carbon
- smoke

A:
CO 2