Problem: OPTIONS:
- vegetables
- hair
- teeth
- hands
Q: Q: Most of these bacterial illnesses can be prevented with proper cooking of food and washing what? A:
Answer: hands

Problem:OPTIONS:
- mirror
- microwave
- prism
- laser

Q: A device that produces a very focused beam of visible light of just one wavelength and color is called? A:
****
A: laser

Q: Mercury and lead, which was once widely used in paint and gasoline, are examples of what type of metals? A:
OPTIONS:
- gaseous heavy metals
- alloys
- sulfuric heavy metals
- toxic heavy metals
toxic heavy metals

Q: What flows like taffy or hot wax? A:
OPTIONS:
- gas
- water
- sand dunes
- molten rock

Answer: molten rock

Question: Q: What gems are created by mollusks, such as oysters? A:
OPTIONS:
- crystals
- turquoise
- diamonds
- pearls
Answer: pearls

input: OPTIONS:
- obsidian
- magma
- shards
- pyroclasts Now, answer this question: Q: What are hot fragments of rock called? A:
A:
output:
pyroclasts