Fact 1: DNA is found in chromosomes. Fact 2: DNA DNA is deoxyribonucleic acid. Given the two facts above, what is found in chromosomes?
OPTIONS:
- allow growth
- lactic acid
- carbonic acid
- more abundant
- deoxyribonucleic acid
- mutations
- Chemical energy
- It helps them survive

Answer: deoxyribonucleic acid

Fact 1: Alaser is used for producing light. Fact 2: Also, very powerful, high concentration lasers can burn or cut the skin. Given the two facts above, what can burn the skin?
OPTIONS:
- cream
- light
- ointment
- the sun
- Lukewarm water
- cigars
- Acids
- NaCl

Answer: light

Fact 1: Shelter is used for protection by animals against weather. Fact 2: Many snakes seek shelter from the winter weather by holding up in dens. Given the two facts above, why does a snake look for shelter in the winter?
OPTIONS:
- Protection
- Food
- adding heat
- Water
- When it's cold
- Darkness
- energy barrier
- hydration

Answer:
Protection