Problem: OPTIONS:
- helium
- carbon
- oxygen
- hydrogen
Q: Answer the following question given this paragraph: Abundance The elements vary widely in abundance. In the universe as a whole, the most common element is hydrogen (about 90% of atoms), followed by helium (most of the remaining 10%). All other elements are present in relatively minuscule amounts, as far as we can detect. On the planet Earth, however, the situation is rather different. Oxygen makes up 46.1% of the mass of Earth's crust (the relatively thin layer of rock forming Earth's surface), mostly in combination with other elements, while silicon makes up 28.5%. Hydrogen, the most abundant element in the universe, makes up only 0.14% of Earth's crust. Table 2.1 "Elemental Composition of Earth" lists the relative abundances of elements on Earth as a whole and in Earth's crust. Table 2.2 "Elemental Composition of a Human Body" lists the relative abundances of elements in the human body. If you compare Table 2.1 "Elemental Composition of Earth" and Table 2.2 "Elemental Composition of a Human Body", you will find disparities between the percentage of each element in the human body and on Earth. Oxygen has the highest percentage in both Saylor URL: http://www. saylor. org/books. Q: In the universe as a whole, what is the most common element? A:
Answer: hydrogen

Problem:OPTIONS:
- temperature
- melting point
- freezing point
- surface tension

Answer the following question given this paragraph: Liquids with strong intermolecular forces have higher surface tensions than liquids with weaker forces. Q: Liquids with strong intermolecular forces have higher what than liquids with weaker forces? A:
****
A: surface tension

Answer the following question given this paragraph: Q: What are the two types of vascular tissue? A:
OPTIONS:
- ectoderm and phloem
- phloem and phlegm
- cytoplasm and ectoplasm
- xylem and phloem
xylem and phloem

Answer the following question given this paragraph: When an acid and a base react, the reaction is called a neutralization reaction . That's because the reaction produces neutral products. Water is always one product, and a salt is also produced. A salt is a neutral ionic compound. You can learn more about salts and how they form at this URL: http://www. youtube. com/watch?v=zjIVJh4JLNo . Q: What is the reaction called when an acid and a base react? A:
OPTIONS:
- activation
- oxidation
- decomposition
- neutralization

Answer: neutralization

Question: Answer the following question given this paragraph: After an infection has been brought under control, most cytotoxic T cells die off. However, a few remain as memory cells. If the same pathogen enters the body again, the memory cells mount a rapid immune response. They quickly produce many copies of cytotoxic T cells specific to the antigen of that pathogen. Q: After an infection has been brought under control and most cytotoxic t cells die off, a few remain as what? A:
OPTIONS:
- b cells
- natural killer cells
- control cells
- memory cells
Answer: memory cells

input: OPTIONS:
- glycolysis
- digestion
- peristalsis
- egestion Now, answer this question: Answer the following question given this paragraph: Q: What is the process by which undigested food leaves the body? A:
A:
output:
egestion