Problem:OPTIONS:
- humans
- gravity
- the skin
- density
- cells
- plants
- clouds
- animals

Fact 1: Zinc has a positive impact on the healing of wounds. Fact 2: If an animal is wounded then the wound is healed. Given the two facts above, what does zinc have a positive impact on?
****
A: animals

Problem:OPTIONS:
- an object
- engines
- vehicles
- animals
- the skin
- clams
- copper
- Mammal

Fact 1: If a thermal conductor is exposed to a source of heat then that conductor may become hot. Fact 2: Copper is a great thermal conductor. Given the two facts above, what can easily become hot if exposed to heat?
****
A: copper

Problem:OPTIONS:
- By wind and rain
- Something that is found on a cloud
- fertilization occurs
- Males and females
- Something that comes from a volcano
- Something that is invisible
- Something that causes allergies
- sperm and egg fuse

Fact 1: Plant reproduction often requires pollen. Fact 2: Hay fever or pollen allergy is the most prevalent allergy. Given the two facts above, what is required for plant reproduction?
****
A: Something that causes allergies

Problem:OPTIONS:
- fossils
- toads
- eggs
- swea
- small
- insects
- porous
- snail

Fact 1: Most mollusks have shells. Fact 2: Among mollusks, the golden snail is a survivalist. Given the two facts above, most of what type of animal is known for having a shell?
****
A:
snail