Problem: OPTIONS:
- a pathogens
- Roundworms
- flow of electrons
- dust
- thunder
- an amoebae
- chemical weathering
- skin
Q: Fact 1: Chemical weathering causes iron in rock to oxidize. Fact 2: Rust colored residues are due to oxidized iron. Given the two facts above, what causes rust?
Answer: chemical weathering

Problem:OPTIONS:
- heat produced
- Eating a lot
- Reproducing quickly
- biological diversity
- vegetation
- Being in a cluster
- Staying far apart
- hydrate their cells

Fact 1: Organisms cluster around hydrothermal vents in the ocean floor. Fact 2: To survive, some organisms living near hydrothermal vents have formed close associations. Given the two facts above, how is survival ensured around hydrothermal vents?
****
A: Being in a cluster

Fact 1: Plants that shed their leaves seasonally each year are called deciduous plants. Fact 2: Grapevines are woody deciduous plants. Given the two facts above, what kind of plant would shed its leaves each year?
OPTIONS:
- it needs them
- grapevines
- burning coal
- warm-blooded
- When it's cold
- white
- heat or cold
- homogenous
grapevines

Fact 1: Erosion causes a river to become deeper and wider. Fact 2: Weathering and erosion continue to shape it today. Given the two facts above, weathering causes what to become deeper and wider?
OPTIONS:
- a landslide
- Sediment
- a mountain
- a volcano
- soils
- rock
- flooding
- a river

Answer: a river

Question: Fact 1: Specialization occurs when competing species evolve different adaptations. Fact 2: Most species are highly specialized for their environments and evolve as the environments change. Given the two facts above, specialization occurs when competing creatures evolve as the what?
OPTIONS:
- habitats grow
- salamanders
- animals develop
- times change
- It helps them survive
- principals of aerodynamics
- environments change
- remains of prehistoric life
Answer: environments change

input: OPTIONS:
- glucose
- Gold
- Energy
- food
- Polonium
- Nitrogen
- Helium
- heat energy Now, answer this question: Fact 1: Nitrogen is found in proteins, nucleic acids, and chlorophyll. Fact 2: Most molecules are proteins or nucleic acids. Given the two facts above, _ is found in most molecules.?
A:
output:
Nitrogen