Q: Scurvy is a disease that sailors often got on long voyages. It was discovered that scurvy could be prevented by eating oranges and lemons. This suggests that scurvy is a disease caused by OPTIONS:
- exposure to sea air
- a nutritional deficiency
- a microorganism
- lack of exercise
A: a nutritional deficiency

Fossil fuels were formed from
OPTIONS:
- volcanoes
- the remains of living things
- gases in the atmosphere
- water trapped inside rocks

the remains of living things

Q: Which is a nonrenewable natural resource that is used to make electrical energy? ---- OPTIONS:
- coal
- wind
- water
- thermal

A: coal

Which are produced during photosynthesis?
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OPTIONS:
- carbon dioxide and minerals
- carbon dioxide and sugar
- oxygen and minerals
- oxygen and sugar

oxygen and sugar

Question:
Which term identifies a group of cells that work together to perform a similar function?
OPTIONS:
- molecule
- organ
- organism
- tissue
Answer:
tissue

*Question*: Scientists claim that the continents of South America and Africa were once a single landmass. All of the following observations support this claim except OPTIONS:
- the mountains on these continents have similar rocks of the same age.
- these continents appear to fit together like the pieces of a puzzle.
- similar fish live in the ocean off the coasts of these continents.
- the same kinds of fossils have been found on these continents.
*Answer*:
similar fish live in the ocean off the coasts of these continents.