Problem: OPTIONS:
- ferns
- organisms
- vegetation
- humans
- emissions
- Energy
- insects
- the sun
Q: Fact 1: Organisms cluster around hydrothermal vents in the ocean floor. Fact 2: Hydrothermal vents are powered by the heat of submarine volcanoes. Given the two facts above, what clusters around the heat of submarine volcanoes?
Answer: organisms
Problem: OPTIONS:
- exercise
- sweating
- adding heat
- Energy
- dilation
- heat or cold
- heat
- Dehydration
Q: Fact 1: Dilation occurs when cell walls relax. Fact 2: When oxygen level decreases, dilatation of the blood vessels occurs. Given the two facts above, what causes cell walls to relax?
Answer: dilation
Problem: OPTIONS:
- Electrical energy
- energy of moving objects
- making an object hot
- cooling an object
- freezing an object
- chemical reaction
- global warming
- stretching an object
Q: Fact 1: Increasing heat causes thermal expansion. Fact 2: Heating by direct heat is usually too hot. Given the two facts above, what causes thermal expansion?
Answer:
making an object hot