Problem: OPTIONS:
- during rain-less periods
- at or near the margins
- after a drought
- Decreased precipitation
- after too much water received
- after not enough water
- near the shoreline
- the wearing away of rock
Q: Fact 1: When a body of water receives more water than it can hold , a flood occurs. Fact 2: Lakes are large bodies of inland water. Given the two facts above, when does a flood occur in a lake?
Answer: after too much water received

Problem:OPTIONS:
- Sugarcane
- orchids
- bushes
- bioaerosols
- cacti
- trees
- ferns
- Chlorophyll

Fact 1: Grasses supply most of the food consumed by people worldwide. Fact 2: Sugarcane, a grass, provides much of the world's sugar. Given the two facts above, what is an example of a plant that supplies most of the food consumed by people worldwide?
****
A: Sugarcane

Fact 1: Chordates have a complete digestive system and a closed circulatory system. Fact 2: Because reptiles are vertebrates, they are chordates. Given the two facts above, what kind of circulatory system do reptiles have?
OPTIONS:
- open
- systemic
- complex
- dense
- cold
- three
- closed
- organ
closed

Fact 1: Mutation creates new genetic variation in a gene pool. Fact 2: Genetic variation is the raw material for evolution. Given the two facts above, mutation in a gene pool is the raw material for what?
OPTIONS:
- Most plants
- animals
- large litters
- competition
- Plants growth
- many offspring
- evolution
- twins

Answer: evolution

Question: Fact 1: The Earth revolving around the Sun causes the seasons to change on its axis. Fact 2: Gold, scarlet, and auburn leaves make a mosaic of rich colors heralding seasonal change. Given the two facts above, what factor is instrumental behind the change of leaf colors during the year?
OPTIONS:
- organisms and their habitat
- global warming
- Earth orbiting the Sun
- Solar energy
- scattered light
- Greenhouse gases
- Varying light output from sun
- Moon orbiting the Earth
Answer: Earth orbiting the Sun

input: OPTIONS:
- clouds
- stars
- erosion
- loose soil
- wind
- ice wedging
- rainwater
- calcite Now, answer this question: Fact 1: Most canyons are formed by flowing rivers through erosion over long periods of time. Fact 2: Rivers, rainwater, well water and most lakes contain fresh water. Given the two facts above, what are canyons formed by?
A:
output:
rainwater