Answer the following question given this paragraph: Did you ever wonder what happens to a candle when it burns? A candle burning is a chemical change in matter. In a chemical change, one type of matter changes into a different type of matter, with different chemical properties. Chemical changes occur because of chemical reactions. You can see more examples of chemical changes at this URL: http://www. youtube. com/watch?v=66kuhJkQCVM . Q: Chemical changes occur because of what? A:
OPTIONS:
- liquid reactions
- evaporation
- toxic reactions
- chemical reactions

Answer: chemical reactions

Question: Answer the following question given this paragraph: Zeros that show only where the decimal point falls are not significant. For example, the number 470,000 has just two significant figures (4 and 7). The zeros just show that the 4 represents hundreds of thousands and the 7 represents tens of thousands. Therefore, these zeros are not significant. Q: Are zeroes that show only where the decimal point fall significant or not significant? A:
OPTIONS:
- neither
- sometimes significant
- significant
- not significant
Answer: not significant

input with options: Answer the following question given this paragraph: Q: What is the unsorted pile of material dropped by glaciers called? A:
OPTIONS:
- icy deposit
- glacial runoff
- landfill
- glacial till
output: glacial till

Q: Answer the following question given this paragraph: Colligative properties have practical applications, such as the salting of roads in cold-weather climates. By applying salt to an icy road, the melting point of the ice is decreased, and the ice will melt more quickly, making driving safer. Sodium chloride (NaCl) and either calcium chloride (CaCl 2 ) or magnesium chloride (MgCl 2 ) are used most frequently, either alone or in a mixture. Sodium chloride is the least expensive option, but is less effective because it only dissociates into two ions instead of three. Q: By applying salt to an icy road, the melting point of the ice is what? A:

OPTIONS:
- concentrated
- compounded
- increased
- decreased

A: decreased

input: OPTIONS:
- uterus
- umbilical sac
- epithelial sac
- amniotic sac Now, answer this question: Answer the following question given this paragraph: The embryo, which begins as a flat sheet of cells, begins to acquire a cylindrical shape through the process of embryonic folding (Figure 28.14). The embryo folds laterally and again at either end, forming a C-shape with distinct head and tail ends. The embryo envelops a portion of the yolk sac, which protrudes with the umbilical cord from what will become the abdomen. The folding essentially creates a tube, called the primitive gut, that is lined by the endoderm. The amniotic sac, which was sitting on top of the flat embryo, envelops the embryo as it folds. Q: What sac, which was sitting on top of the flat embryo, envelops the embryo as it folds? A:
A:
output: amniotic sac

Question: Answer the following question given this paragraph: A solution is a homogeneous mixture in which a solute dissolves in a solvent. Water is a very common solvent, especially in organisms. Q: What is the general name for the homogeneous mixture that is formed when a solute dissolves in a solvent? A:
OPTIONS:
- Reaction
- Combination
- Dissolvant
- solution
Answer:
solution