Fact 1: Courtship is behavior that is intended to attract a mate. Fact 2: Friendship usually precedes courtship, and courtship, marriage. Given the two facts above, what does friendship usually precede?

OPTIONS:
- competition
- the body's largest organ
- A Greek letter
- birth
- death
- attracting a mate
- firm hugs
- h2o

Answer: attracting a mate

Problem: OPTIONS:
- heat energy
- skin cancer
- killing insects
- chemical changes
- brain cancer
- occular cancer
- lung cancer
- hypothyroidism
Q: Fact 1: Ultraviolet light causes sunburn. Fact 2: Sunburns are a risk factor for skin cancer. Given the two facts above, ultraviolet light can cause what?
Answer: skin cancer

Problem:OPTIONS:
- critical organs
- body critics
- fur and fat
- protective bony armor
- redundant organs
- layers of fat
- sea urchins
- solar waves

Fact 1: Skin is used for protecting the body from harmful substances. Fact 2: Eyes and skin are the critical organs. Given the two facts above, what are used for protecting the body from harmful substances?
****
A: critical organs

Fact 1: An earthquake causes the ground to shake. Fact 2: Examples include damage to man-made structures, ground failure and felt shaking. Given the two facts above, what causes damage to man-made structures?
OPTIONS:
- flooding
- air quality
- animal crossings
- earthquakes
- toxins
- trees bending
- influenza
- Pesticides
earthquakes

Fact 1: Gills are used for breathing water by aquatic animals. Fact 2: Animals breathe in oxygen and breathe out carbon dioxide. Given the two facts above, how do aquatic animals get oxygen?
OPTIONS:
- photosynthesis
- gills
- rivers
- blood
- solutes
- lungs
- streams
- carbon transfer

Answer: gills

input with options: Fact 1: Having food has a positive impact on an organism 's health. Fact 2: Animals eat plants for food. Given the two facts above, what do animals eat for a positive impact on their health?
OPTIONS:
- nutrients
- plutonium
- plants
- Energy
- Proteins
- cellulose
- cyanide
- plantations
output:
plants