Answer the following question given this paragraph: People protect areas that might flood with dams. In dire situations, they use sandbags ( Figure below ). Dams are usually very effective, but high water levels sometimes cause a dam to break. In that case, flooding can be catastrophic. Flood waters can also overflow a dam. People may line a river bank with levees to protect against floods. These are high walls that keep the stream within its banks during floods. Flood protection in one location sometimes causes problems elsewhere. For example, a levee in one location may just force the high water upstream or downstream. This will lead to flooding in a different location. Sometimes water gets so high that the river must be allowed to flood. Q: What do people build to protect areas from floods? A:
OPTIONS:
- reinforced walls
- drains
- sewers
- dams
dams

Answer the following question given this paragraph: Increasing or decreasing the temperature of a system at equilibrium is also a stress to the system. The equation for the Haber-Bosch process is written again below, this time as a thermochemical equation. Q: Increasing or decreasing the temperature of a system in what state acts as a stress to the system? A:
OPTIONS:
- gaseous
- nitrogen
- liquid
- equilibrium

Answer: equilibrium

Question: Answer the following question given this paragraph: If no unbalanced force acts on an object the object remains at constant velocity or at rest. Q: If no unbalanced force acts on an object the object remains at constant velocity or what? A:
OPTIONS:
- rotating
- constant
- constant movement
- at rest
Answer: at rest

input with options: Answer the following question given this paragraph: Q: Why are the stems of many xerophytes fleshy? A:
OPTIONS:
- drains water
- pressures water
- collects water
- stores water
output: stores water

Q: Answer the following question given this paragraph: Sodium and chloride ions have equal but opposite charges. Opposite electric charges attract each other, so sodium and chloride ions cling together in a strong ionic bond. You can see this in row 2 of the Figure above . (Brackets separate the ions in the diagram to show that the ions in the compound do not actually share electrons. ) When ionic bonds hold ions together, they form an ionic compound. The compound formed from sodium and chloride ions is named sodium chloride. It is commonly called table salt. You can see an animation of sodium chloride forming at this URL: http://www. visionlearning. com/library/module_viewer. php?mid=55. Q: Sodium and chloride ions have equal but what charges? A:

OPTIONS:
- path
- positive
- simple
- opposite

A: opposite

Answer the following question given this paragraph: A tissue is a group of specialized cells of the same kind that perform the same function. Modern plants have three major types of tissues. They're called dermal, ground, and vascular tissues. Q: How many types of major tissues do modern plants have? A:
OPTIONS:
- two
- seven
- four
- three
three