Q: You are presented with the quiz "gases from burning coal and oil dissolving in water can harm what?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "gases from burning coal and oil dissolving in water in the atmosphere causes acid rain" and "acid rain can harm plant life and actually kill plants". So, what's the best answer to the question? | OPTIONS:
- soils
- people
- oil reserves
- plant life
- animals
- coal factories
- humans
- gas buildup
A: plant life

Q: You are presented with the quiz "Ice crystals can resist what?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "the sun causes water to evaporate more quickly by adding heat" and "ice crystals resist evaporation". So, what's the best answer to the question? | OPTIONS:
- scattered light
- power
- erosion
- salt and water.
- sun's heat
- salinity
- Temperature
- kinetic energy
A: sun's heat

Q: You are presented with the quiz "What can cause landslides?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "erosion can cause a landslide" and "and the erosion caused by the unimpeded flow of water is an example of unintentional change". So, what's the best answer to the question? | OPTIONS:
- The flow of water
- loose soil
- Drought
- deforestation
- Adequate subsurface drainage
- mouth of rivers
- Physical weathering
- Lack of rain
A: The flow of water

Q: You are presented with the quiz "What can threatening behavior cause?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "threatening behavior causes a fight-or-flight response in animals" and "fighting can lead to brawls and significant injury". So, what's the best answer to the question? | OPTIONS:
- love
- toxins
- Pollution
- disease
- knowledge
- injury
- negative
- friendship
A: injury