input: OPTIONS:
- to add water to crops
- hydration
- vaporization
- to water the garden
- to drink it
- looseness
- to track it
- evaporation Now, answer this question: Fact 1: Treating water is used to remove harmful substances before drinking. Fact 2: For a scientist, water is H2O whether from the Ganga or a tap. Given the two facts above, why do we generally treat H2O?
A:
output: to drink it

Fact 1: Moss causes chemical weathering. Fact 2: Chemical weathering is the chemical disintigration of rocks. Given the two facts above, what does moss do to a rock?

OPTIONS:
- It remains dormant
- Enriches the soil
- Causes it to disintegrate
- depress neuronal excitability
- decreases its bodily water
- It used to be covered by water
- absorb light energy
- refract or absorb.

Answer: Causes it to disintegrate

Problem: OPTIONS:
- sensory neurons
- herbicide
- A resistor
- focusing a lens
- evaporation
- heat energy
- heating liquids
- energy barrier
Q: Fact 1: When electricity flows to a light bulb , the light bulb will turn on. Fact 2: Materials that control the flow of electricity are called resistors. Given the two facts above, what could prevent a light bult from turning on?
Answer: A resistor

Problem:OPTIONS:
- density
- west
- signs of life
- rain
- waves
- Vapor
- Inches
- snow

Fact 1: Precipitation falls on the windward side of the mountain range. Fact 2: Rain is also known as precipitation. Given the two facts above, what falls on the windward side of the mountain range?
****
A: rain

Fact 1: Viruses are not cells. Fact 2: Viruses Viruses are the simplest organisms known. Given the two facts above, are there organisms simpler than cells.?
OPTIONS:
- DNA
- plankton
- tiny
- algae
- amoeba
- RNA
- yes
- food
yes

Fact 1: Skin is used for protecting the body from harmful substances. Fact 2: Sunlight, however, is harmful to the skin. Given the two facts above, what does skin protect from?
OPTIONS:
- photons
- cold air
- electricity
- forces
- toxins
- sunlight
- heat energy
- sun's heat

Answer:
sunlight