Fact 1: Mechanical weathering is when rocks are broken down by mechanical means. Fact 2: Water is a mechanical weathering force. Given the two facts above, what weathers rocks?
OPTIONS:
- soil
- streams
- a delta
- calcite
- erosion
- water
- grass
- the sun
water

Fact 1: Mutations that lead to cancer usually occur in genes that control the cell cycle. Fact 2: Free radicals can mutate genes and eventually lead to cancer or cell death. Given the two facts above, what that eventually lead to cell death usually occur in genes that control the cell cycle?
OPTIONS:
- free radicals
- acetic acid
- free cells
- A Greek letter
- Localized damage
- massive damage
- radical animals
- free animals

Answer: free radicals

Question: Fact 1: Steroid hormones are made of lipids, such as phospholipids and cholesterol. Fact 2: Fats A fat is another term for lipid. Given the two facts above, what are steroid hormones made of?
OPTIONS:
- fats
- blood
- H 2 O
- sugar
- dust
- muscle
- gasoline
- SO2
Answer: fats

input with options: Fact 1: Mutations that lead to cancer usually occur in genes that control the cell cycle. Fact 2: Mitosis is part of the cell cycle. Given the two facts above, mutations that lead to cancer usually effect genes that aid in what?
OPTIONS:
- illness
- health
- disease
- blood transfer
- chemotherapy
- respiraration
- mitosis
- recovery
output: mitosis

Q: Fact 1: Condensing causes a liquid to form. Fact 2: Oil and water are two such liquids. Given the two facts above, condensing causes?

OPTIONS:
- liquid to evaporate
- water to flow
- dirt to form
- permineralization
- Heat energy
- erosion
- water to form
- less water

A: water to form

Fact 1: Antigens are molecules that the immune system recognizes as foreign to the body. Fact 2: Yes, foreigners are called Aliens. Given the two facts above, what are molecules that are recognized by the body as alien?
OPTIONS:
- parasites
- Acids
- heat or cold
- negative
- antigone
- antibodies
- antigens
- blood cells
antigens