input: OPTIONS:
- direct damage to the lungs
- h2o
- an area swollen with pus
- chlorine, pesticides, heavy metals
- molecules
- vapor
- Mutagenic chemicals
- nonliving organic matter Now, answer this question: Fact 1: Treating water is used to remove harmful substances before drinking. Fact 2: Ordinary tap water can be full of harmful substances like chlorine, pesticides and heavy metals. Given the two facts above, what does treating water remove before drinking it?
A:
output: chlorine, pesticides, heavy metals

Fact 1: Flowers attract animal pollinators. Fact 2: Bees are effective pollinators. Given the two facts above, bees are attracted to?

OPTIONS:
- plant life
- tree bark
- orchids
- plants
- flowers
- plant stems
- shrub leaves
- bushes

Answer: flowers

Problem: OPTIONS:
- extremely high frequencies
- matter vibrating
- population movement
- extremely high-pitched sound
- electromagnetic energy
- matter's height
- sensory neurons
- rays or beams
Q: Fact 1: Matter vibrating can cause sound. Fact 2: When the waves pass our ears, a sound is detected. Given the two facts above, what can our ears detect?
Answer: matter vibrating

Problem:OPTIONS:
- chemical messengers
- prolactin release
- with their fur
- sweating
- Breathing mask
- deoxyribonucleic acid
- Cooking
- hormones

Fact 1: Abreathing mask is used for keeping harmful particles from entering the respiratory system. Fact 2: Allergies are a reaction of the immune system to harmful particles in the air. Given the two facts above, what can prevent an allergic reaction?
****
A: Breathing mask

Fact 1: An automobile engine transforms chemical energy into mechanical energy. Fact 2: Chemical energy is the energy stored in molecules. Given the two facts above, where is energy stored before being used by an automobile to create mechanical energy?
OPTIONS:
- sunlight
- layers of fat
- The atmosphere
- In molecules
- fossil fuels
- electrically
- a hydraulic system
- engines
In molecules

Fact 1: Most canyons are formed by flowing rivers through erosion over long periods of time. Fact 2: Striations in rock forms are seen along the river and tell the geologic history of the area. Given the two facts above, where can one readily see the geologic history of an area?
OPTIONS:
- down
- scuba diving
- soils
- pastureland
- canyon
- driving
- Mountains
- mines

Answer:
canyon