Problem: OPTIONS:
- calcite
- limestone
- In sediment
- the skin
- graptolites
- loose soil
- body water
- soils
Q: Fact 1: Chemical weathering causes iron in rock to oxidize. Fact 2: Limestone is a fairly common rock type. Given the two facts above, chemical weathering causes iron to oxidize in what?
Answer: limestone

Problem:OPTIONS:
- expelled
- Positive charges
- all liquids
- properties
- Something to move
- water vapor
- kinetic energy
- Cooling vapors

Fact 1: Evaporation of sweat uses energy, and the energy comes from body heat. Fact 2: Kinetic energy comes from heat. Given the two facts above, evaporation of sweat uses what from the body?
****
A: kinetic energy

Fact 1: Cells are programmed to divide only a set number of times. Fact 2: Cell division is by mitosis . Given the two facts above, what occurs a set number of times?
OPTIONS:
- evolution
- respiration
- waves
- mitosis
- photosynthesis
- relocation
- murmur
- fever
mitosis

Fact 1: If the amount of available food and water decreases in an environment then animals may leave that environment to find food and water. Fact 2: Food, water and air are the essentials of life on earth. Given the two facts above, what can decrease in an environment, and may cause animals to leave?
OPTIONS:
- essentials of life
- competition
- wind speed
- living things
- single-celled organisms
- deforestation
- biodiversity
- rock content

Answer: essentials of life

Question: Fact 1: Hormones are chemical messengers that control many body functions. Fact 2: Body functions are interrelated. Given the two facts above, what are interrelated?
OPTIONS:
- mammals
- hormones
- density
- trees
- seasons
- colors
- h2o
- gravity
Answer: hormones

input: OPTIONS:
- sperm
- mechanical
- barnacles
- the penis
- the moon
- testosterone
- Chemical energy
- competition Now, answer this question: Fact 1: Testosterone stimulates the reproductive organs to develop into male organs. Fact 2: Testicles are male reproductive organs. Given the two facts above, what stimulates the reproductive organs to develop testicles?
A:
output:
testosterone