*Question*
Q: What kind of energy comes from the position of a charged particle in an electric field? Read this paragraph and choose the correct option from the provided answers: Electric potential energy comes from the position of a charged particle in an electric field. For example, when two negative charges are close together, they have potential energy because they repel each other and have the potential to push apart. If the charges actually move apart, their potential energy decreases. Electric charges always move spontaneously from a position where they have higher potential energy to a position where they have lower potential energy. This is like water falling over a dam from an area of higher to lower potential energy due to gravity. Choices: - solar energy - mechanical energy - thermal energy - potential energy A:
**Answer**
potential energy

*Question*
Q: What's it called when there's a sudden flow of mud? Read this paragraph and choose the correct option from the provided answers: A mudflow is the sudden flow of mud down a slope because of gravity. Mudflows occur where the soil is mostly clay. Like landslides, mudflows usually occur when the soil is wet. Wet clay forms very slippery mud that slides easily. Mudflows follow river channels, washing out bridges, trees, and homes that are in their path. Choices: - avalanche - sediment - dirt bath - mudflow A:
**Answer**
mudflow

*Question*
Q: Like mitochondria, plastids contain their own what? Read this paragraph and choose the correct option from the provided answers: Like mitochondria, plastids contain their own DNA. Therefore, according to endosymbiotic theory, plastids may also have evolved from ancient, free-living prokaryotes that invaded larger prokaryotic cells. If so, they allowed early eukaryotes to make food and produce oxygen. Choices: - riboflavin - bacteria - molecule - dna A:
**Answer**
dna

*Question*
Q: What is lava called before it reaches the surface of the earth? Read this paragraph and choose the correct option from the provided answers: Minerals form as magma or lava cools. Choices: - crust - pyrite - rock - magma A:
**Answer**
magma