Problem:OPTIONS:
- entry point pollution
- point supply pollution
- point supply pollution
- point source pollution

Answer the following question given this paragraph: Pollution that enters water at just one point is called point source pollution . For example, chemicals from a factory might empty into a stream through a pipe or set of pipes (see Figure below ). Pollution that enters in many places is called non-point source pollution . This means that the pollution is from multiple sources. With non-point source pollution, runoff may carry the pollution into a body of water. Which type of pollution do you think is harder to control?. Q: What is pollution that enters water at just one point called? A:
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A: point source pollution

Answer the following question given this paragraph: Many archaeans live in close relationships with other organisms. For example, large numbers live inside animals, including humans. Unlike many bacteria, archaeans don't harm their hosts. None of them is known to cause human disease. Archaeans are more likely to help their hosts. For example, archaeans called methanogens live inside the gut of cows (see Figure below ). They help cows digest tough plant fibers made of cellulose. They produce methane gas as a waste product. Q: Archaeans produce what kind of gas as a waste product? A:
OPTIONS:
- sulfide
- carbon monoxide
- carbon dioxide
- methane
methane

Answer the following question given this paragraph: Only mammals have hair. Hair is a fiber made mainly of the tough protein keratin. The cells of each hair are filled with keratin and no longer alive. The dead cells overlap each other, almost like shingles on a roof. They work like shingles as well, by helping shed water from hair. Q: What is the only class of animals that has hair? A:
OPTIONS:
- reptiles
- amphibians
- birds
- mammals

Answer: mammals

Question: Answer the following question given this paragraph: Duplicated chromosomes are composed of two sister chromatids. Chromosomes are compacted using a variety of mechanisms during certain stages of the cell cycle. Several classes of protein are involved in the organization and packing of the chromosomal DNA into a highly condensed structure. The condensing complex compacts chromosomes, and the resulting condensed structure is necessary for chromosomal segregation during mitosis. Q: Duplicated chromosomes are composed of two sister what? A:
OPTIONS:
- karyotypes
- eukaryotes
- nucleotides
- chromatids
Answer: chromatids

input with options: Answer the following question given this paragraph: 23.4 Natural selection is the only mechanism that consistently causes adaptive evolution. Q: What is the only mechanism that consistently causes adaptive evolution? A:
OPTIONS:
- genetic drift
- neutral selection
- artificial selection
- natural selection
output: natural selection

Problem: OPTIONS:
- power reaction
- compounding reaction
- chemical reaction
- combination reaction
Q: Answer the following question given this paragraph: A combination reaction is a reaction in which two or more substances combine to form a single new substance. Combination reactions can also be called synthesis reactions. The general form of a combination reaction is:. Q: What kind of reaction is a reaction in which two or more substances combine to form a single new substance? A:
Answer:
combination reaction