Problem:OPTIONS:
- A Greek letter
- satellites
- electricity
- rays or beams
- Firecrackers
- photons
- sound waves
- microscope

Fact 1: Sonar is used to find the location of an object. Fact 2: Sonar devices use sound waves to find things. Given the two facts above, what are used to find the location of an object?
****
A: sound waves

Fact 1: Viruses are so small that they can be seen only with an electron microscope. Fact 2: Some smallpox viruses are maintained in laboratories. Given the two facts above, what is so small it can be seen only with an electron microscope?
OPTIONS:
- all invertebrates
- humans
- bacteria
- alveoli
- acetic acid
- orchids
- smallpox
- planets
smallpox

Fact 1: Lakes are generally bigger and deeper than ponds. Fact 2: Scotland s lochs , including the famous Loch Ness, are glacial lakes. Given the two facts above, what is larger than ponds?
OPTIONS:
- rivers
- deltas
- H 2 O
- loch
- toads
- drop
- puddle
- bird bath

Answer: loch

Question: Fact 1: Bacteria can cause people to become ill. Fact 2: Everyone can get sick from resistant bacteria. Given the two facts above, what property do germs have that can make people sick?
OPTIONS:
- coded genes
- hyperthyroidism
- hypothyroidism
- chickenpox
- smallpox
- viruses
- Echinoids
- resistance
Answer: resistance

input with options: Fact 1: Mammals generate heat mainly by keeping their metabolic rate high. Fact 2: Birds have a high metabolic rate and a high energy requirement. Given the two facts above, what mammals have a high energy requirement and generate heat?
OPTIONS:
- cats
- bats
- Crustaceans
- bears
- frogs
- lizards
- birds
- mammals
output: birds

Problem: OPTIONS:
- water
- mammals
- ice
- tigers
- animals
- humans
- plants
- the Sun
Q: Fact 1: Cells are the basic units of the structure and function of living things. Fact 2: Tigers are the largest of the living cats. Given the two facts above, cells are the basic units of the structure and function of what?
Answer:
tigers