Problem: OPTIONS:
- mines
- tar
- energy
- copper
- cars
- state
- Oak
- fire
Q: Fact 1: Coal is used to produce electricity by burning in coal-fire power stations. Fact 2: Coal mines operated without electricity. Given the two facts above, what produces coal?
Answer: mines
Problem: OPTIONS:
- a hydraulic system
- space matter
- mud shoes
- Water expanding
- Physical weathering
- organic matter
- flow of electrons
- insignificant matter
Q: Fact 1: Being burried under soil and mud changes peat into coal through extreme heat and pressure in a swamp over a long period of time. Fact 2: Peat moss is the organic matter that mixes with soil to form peat. Given the two facts above, what being buried under mud changes peat into coal?
Answer: organic matter
Problem: OPTIONS:
- deposition
- pressurization
- condensation
- cells
- decomposition
- Water expanding
- erosion
- tiny polyps
Q: Fact 1: Stalactites are formed by deposition. Fact 2: Chrissospilia is a cave with stalagmites and stalactites. Given the two facts above, chrissospilias are formed by ?
Answer:
deposition