Fact 1: Irradiating food can be used to kill existing microorganisms in the food. Fact 2: Microorganisms in food are also responsible for the spoilage of food. Given the two facts above, irradiating food prevents what?

OPTIONS:
- discoloration
- bacteria
- freezing
- Dehydration
- spoilage
- cancer
- bad odors
- apoptosis

Answer: spoilage

Problem: OPTIONS:
- Greenhouse gasses
- Greenhouse gases
- cancer
- wood ash
- atmospheric warming
- coal
- heat energy
- Temperature
Q: Fact 1: Burning fossil fuels increases the carbon in the atmosphere. Fact 2: More carbon in the atmosphere means atmospheric warming. Given the two facts above, what increases when fossil fuels are burned?
Answer: atmospheric warming

Problem:OPTIONS:
- mussels
- the trout
- sea urchins
- eukyarotes
- the duck
- The beaver
- amphibians
- the otter

Fact 1: Damming a river can cause a lake to form. Fact 2: Beavers build dams. Given the two facts above, what animal can help lakes to form?
****
A: The beaver

Fact 1: Echinoderms lack respiratory and excretory systems. Fact 2: All echinoderms are deuterostomes . Given the two facts above, some what lack respiratory systems?
OPTIONS:
- Smoking
- respiratory systems
- deuterostomes
- cigarettes
- alpacas
- hawks
- barnacles
- pigs
deuterostomes

Fact 1: The Earth being tilted on its rotating axis causes seasons. Fact 2: Spring, summer,autumn and winter are seasons. Given the two facts above, the Earth being tilted on its rotating axis causes what?
OPTIONS:
- Weather
- Winter
- rest
- spring
- wind
- Night and Day
- Gravity
- rainfall

Answer: Winter

input with options: Fact 1: Cells have multiple repair mechanisms to fix mutations in DNA. Fact 2: And if the damaged DNA is duplicated, it causes mutation. Given the two facts above, cells have multiple repair mechanisms to fix what?
OPTIONS:
- a tree falling
- direct damage to the lungs
- that material's properties
- damaged DNA duplication
- an area swollen with pus
- Veins and arteries.
- the body's largest organ
- The bending of a ray of light
output:
damaged DNA duplication