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?

OPTIONS:
- calcite
- limestone
- In sediment
- the skin
- graptolites
- loose soil
- body water
- soils

Answer: limestone

Problem: OPTIONS:
- to sense sound
- to touch things
- focusing a lens
- it needs them
- encoded information
- to sense light
- to sense smell
- food and shelter
Q: Fact 1: Eyes are used for seeing by animals by sensing light. Fact 2: Mammals are animals with a backbone. Given the two facts above, what do mammals use eyes for?
Answer: to sense light

Problem:OPTIONS:
- Roundworms
- Enzymes
- growth
- hurricane
- animals
- fire
- sugar
- earthquake

Fact 1: Seed dispersal has a positive impact on a plant. Fact 2: Grape seeds are dispersed by animals. Given the two facts above, what has a positive impact on plants?
****
A: animals

Fact 1: Viruses often infect bacteria. Fact 2: Antibiotics kill the good bacteria along with the bad bacteria. Given the two facts above, viruses often infect something killed by what?
OPTIONS:
- Rocks
- Antibiotics
- radiation
- Needle
- Water
- Pesticides
- sun's heat
- Cooking
Antibiotics

Fact 1: Energy enters ecosystems in the form of sunlight or chemical compounds. Fact 2: Sunlight is composed of photons, or particles of solar energy. Given the two facts above, energy enters ecosystems in the form of ?
OPTIONS:
- wind
- warmth
- light
- glucose
- photons
- sun's heat
- heat
- expelled

Answer: photons

input with options: Fact 1: Balance is the ability to sense and maintain body position. Fact 2: Balance is a proprioceptive function. Given the two facts above, proprioceptive functions sense and maintain what?
OPTIONS:
- the sense of smell
- sensory neurons
- salt and water.
- cellular respiration
- body position
- temperature
- gasoline
- kinetic energy
output:
body position