You are presented with the quiz "what is caused by flooding?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "heavy rains cause flooding" and "hurricane rains can cause landslides and flash floods". So, what's the best answer to the question?

OPTIONS:
- landslides
- desert
- sunlight
- drought
- Water expanding
- erosion
- contamination
- Pollution

Answer: landslides

You are presented with the quiz "What can uneven heating of the earth's surface cause?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "uneven heating of the Earth 's surface cause wind" and "wind can cause damage to buildings and bring down power lines". So, what's the best answer to the question?

OPTIONS:
- Wealth creation
- Damage to buildings
- Damage to moon
- forest is destroyed
- Greenhouse gases
- Plant growth is reduced
- Damage to sun
- Physical weathering

Answer: Damage to buildings

You are presented with the quiz "What do telephones allow?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "atelephone is used for communication by humans over long distances" and "communication is essential if a relationship is to last the distance". So, what's the best answer to the question?

OPTIONS:
- consumer-grade invisibility
- animal transport
- flow of electrons
- electromagnetic energy
- A transportation fuel
- magic
- relationships to last distance
- instant transfer of matter

Answer: relationships to last distance

You are presented with the quiz "what is a central nervous system stimulant?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "caffeine is a central nervous system stimulant" and "coffee is an excellent source of caffeine". So, what's the best answer to the question?

OPTIONS:
- blood
- NaCl
- SO2
- coffee
- h2o
- salt
- vinegar
- A drug.

Answer:
coffee