Fact 1: Killing microorganisms in food can be used to extend the shelf life of that food. Fact 2: Irradiation kills microorganisms that spoil food. Given the two facts above, what can be used to extend the shelf life of food?
OPTIONS:
- irradiation
- farming
- Dehydration
- rays or beams
- vegetables
- Cooking
- Enzymes
- fruit

Answer: irradiation

Fact 1: Keeping food cold is used for keeping food fresh. Fact 2: Keep your food fresh, simple and as natural as possible. Given the two facts above, what is used to keep foods as simple and as natural as possible?
OPTIONS:
- Energy
- sodium
- lipids
- heat
- RNA
- cold
- fibers
- sugar

Answer: cold

Fact 1: Animals adapt to cold temperatures. Fact 2: Extremes in temperature can kill animals. Given the two facts above, why do animals adapt?
OPTIONS:
- survive
- To live shorter lives
- dry conditions
- To stay weak
- To make money
- the environment
- allow growth
- To avoid death

Answer:
To avoid death