Answer the following question given this paragraph: For a star to form, gravity pulls gas and dust into the center of the nebula. As the material becomes denser, the pressure and the temperature increase. When the temperature of the center becomes hot enough, nuclear fusion begins. The ball of gas has become a star!. Q: For a star to form, what force pulls gas and dust into the center of the nebula? A:
OPTIONS:
- weight
- centrifugal force
- motion
- gravity

Answer: gravity

Question: Answer the following question given this paragraph: Evolution focuses on past life forms and how they turned into present life forms. The history of life on Earth demonstrates how the first cells formed, turned into simple life forms, and then became more complex plants and animals. The studies of Charles Darwin have reshaped and influenced all aspects of biology. The vast amounts of evidence of evolution demonstrates the importance of the theory of evolution by natural selection. But has this process stopped? Of course not. Evolution does continue today. Q: What theory of evolution is charles darwin most known for? A:
OPTIONS:
- natural change
- natural variety
- immoral selection
- natural selection
Answer: natural selection

input with options: Answer the following question given this paragraph: Myopia is also called nearsightedness. It affects about one third of people. People with myopia can see nearby objects clearly, but distant objects appear blurry. The picture below shows how a person with myopia might see two boys that are a few meters away ( Figure below ). Q: What is another name for nearsightedness? A:
OPTIONS:
- hyperopia
- astigmatism
- presbyopia
- myopia
output: myopia

Q: Answer the following question given this paragraph: Radioactive decay is the process in which unstable nuclei become stable by emitting particles and energy and changing to different elements. There are three types of radioactive decay: alpha, beta, and gamma decay. Each differs in what is emitted, how far it can travel, and what it can penetrate. Q: What is the process in which unstable nuclei become stable by emitting particles and energy and changing to different elements called? A:

OPTIONS:
- nuclear decay
- radioactive decrease
- initial decay
- radioactive decay

A: radioactive decay

input: OPTIONS:
- fish
- zooplankton
- algea
- phytoplankton Now, answer this question: Answer the following question given this paragraph: Phytoplankton are the primary producers in the ocean. They form the base of most marine food chains. Q: What are the primary producers in the ocean? A:
A:
output: phytoplankton

Question: Answer the following question given this paragraph: Making Connections: Absolute Zero What is absolute zero? Absolute zero is the temperature at which all molecular motion has ceased. The concept of absolute zero arises from the behavior of gases. Figure 13.9 shows how the pressure of gases at a constant volume decreases as temperature decreases. Various scientists have noted that the pressures of gases extrapolate to zero at the same temperature, 273.15C . This extrapolation implies that there is a lowest temperature. This temperature is called absolute zero. Today we know that most gases first liquefy and then freeze, and it is not actually possible to reach absolute zero. The numerical value of absolute zero temperature is 273.15C or 0 K. Q: The temperature at which all molecular motion has ceased is called what? A:
OPTIONS:
- 0 degrees kelvin
- stopping point
- 0 degrees celcius
- absolute zero
Answer:
absolute zero