Fact 1: High pressure systems cause clear weather. Fact 2: High pressure means falling air, which is a condition minimizing cloud formation. Given the two facts above, what does low pressure weather cause?
OPTIONS:
- Pollution
- flooding
- friction
- clear air
- contamination
- Dehydration
- rainfall
- relocation

Answer: clear air

Fact 1: Cells have multiple repair mechanisms to fix mutations in DNA. Fact 2: DNA excision repair is a major cellular response to DNA damage. Given the two facts above, what is one method of fixing DNA mutations?
OPTIONS:
- Exfoliation
- agriculture
- ligt
- evaporation
- A computer
- acetic acid
- Cooking
- Excision

Answer: Excision

Fact 1: DNA contains genetic instructions for proteins, and RNA helps assemble the proteins. Fact 2: RNA RNA, or ribonucleic acid, is a constituent of all living cells and many viruses. Given the two facts above, what helps assemble proteins?
OPTIONS:
- h2o
- Veins and arteries.
- the body's largest organ
- calcium
- ribonucleic acid
- DNA
- oxidation reaction
- Chemical energy

Answer:
ribonucleic acid