Q: You are presented with the quiz "What turns a liquid into a solid?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "freezing means changing from a liquid into a solid by reducing heat energy" and "liquid water holds a huge amount of heat energy and resists changes of state to solid or gas". So, what's the best answer to the question?

OPTIONS:
- The bending of a ray of light
- decreasing liquid
- reducing heat energy
- Warm air moving into cold air
- movement of tectonic plates
- keeping current temperature
- adding more heat
- evaporation

A: reducing heat energy

Q: You are presented with the quiz "What can cause deforestation?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "creating paper requires cutting down trees" and "deforestation takes place when trees are cut down in the rainforest". So, what's the best answer to the question?

OPTIONS:
- Planting flowers
- Creating paper
- Greenhouse gases
- Filtering water
- Greenhouse gasses
- Cutting grass
- Pesticides
- Pollution

A: Creating paper

Q: You are presented with the quiz "What is formed by rivers flowing over rocks?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "soil is formed by rocks eroding" and "rivers erode the rocks they flow over". So, what's the best answer to the question?

OPTIONS:
- soil
- cracks
- thrust
- rain
- biome
- spring
- potash
- tube

A: soil

Q: You are presented with the quiz "What does rain do to exposed soil?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "rain causes erosion" and "sediment Exposed soil is susceptible to erosion by wind and rain". So, what's the best answer to the question?

OPTIONS:
- It decreases
- moves
- contamination
- protect them
- Damages it
- It expands
- Movement
- evaporation

A:
Damages it