Q: Answer the following question given this paragraph: Sodium is a highly reactive metal, and chlorine is a poisonous gas (see Figure below ). The compound they synthesize has very different properties. It is table salt, which is neither reactive nor poisonous. In fact, salt is a necessary component of the human diet. Q: Sodium and chlorine combine to make what? A:

OPTIONS:
- gold
- seawater
- iron
- salt

A: salt

input: OPTIONS:
- peristalsis
- ketosis
- consciousness
- homeostasis Now, answer this question: Answer the following question given this paragraph: Lenses are made of transparent material such as glass or plastic with an index of refraction greater than that of air. At least one of the faces is a part of a sphere; a convex lens is thicker at the center than the edges, and a concave lens is thicker at the edges than the center. Convex lenses are called converging lenses, because they refract parallel light rays so that they meet. They are one of the most useful and important parts of all optical devices, and are found in eyeglasses, telescopes, microscopes, magnifying glasses, cameras and many other objects. Q: What is defined as maintaining a stable internal environment? A:
A:
output: homeostasis

Answer the following question given this paragraph: The flow of energy through living organisms begins with photosynthesis. This process stores energy from sunlight in the chemical bonds of glucose. By breaking the chemical bonds in glucose, cells release the stored energy and make the ATP they need. The process in which glucose is broken down and ATP is made is called cellular respiration . Q: In cellular respiration, glucose is broken down and what is made? A:

OPTIONS:
- chlorophyll
- simple sugars
- rna
- atp

Answer: atp

Problem: OPTIONS:
- covalent bond
- van der waals force
- hydrogen bond
- an ionic bond
Q: Answer the following question given this paragraph: An ionic bond forms when the metal sodium gives up an electron to the nonmetal chlorine. Q: What forms when the metal sodium gives up an electron to the nonmetal chlorine? A:
Answer: an ionic bond

Problem:OPTIONS:
- comets
- acid rain
- solar traces
- solar rays

Answer the following question given this paragraph: Ozone near the ground harms human health. But the ozone layer in the stratosphere protects us from solar rays. That's why people were alarmed in the 1980s to learn that there was a hole in the ozone layer. Q: What does ozone in the stratosphere protect us from? A:
****
A: solar rays

Problem:OPTIONS:
- spontaneous mutation
- adaptation
- succession
- natural selection

Answer the following question given this paragraph: Evolution occurs by natural selection, the process by which organisms with traits that better enable them to adapt to their environment will tend to survive and reproduce in greater numbers. Evolution is due to differences in the survival and reproduction of individuals within a population. Q: What is the process that allows organisms with better traits to survive and produce? A:
****
A:
natural selection