Problem: OPTIONS:
- life cycle
- air cycle
- cold cycle
- water cycle
Q: Answer the following question given this paragraph: The water cycle includes the ocean, atmosphere, ground, and living things. During the water cycle, water keeps changing state by processes such as evaporation, transpiration, condensation, and precipitation. Q: Precipitation, evaporation, transpiration, and condensation are part of what cycle? A:
Answer: water cycle

Problem:OPTIONS:
- water quality
- all of the above
- natural events
- human activity

Answer the following question given this paragraph: Natural events, like storms, volcanic eruptions and earthquakes can cause major changes in water quality. But human-caused contaminants have a much greater impact on the quality of the water supply. Water is considered polluted either when it does not support a human use, like clean drinking water, or a use for other animals and plants. The overgrowth of algae, known as an algal bloom , can result from the runoff of fertilizer into bodies of water. This excess of nutrients allows the algae to grow beyond control, bring harm to the rest of the ecosystem. Q: What has a bigger impact on water quality, natural events or human activity? A:
****
A: human activity

Answer the following question given this paragraph: Muscles can only contract. They can't actively lengthen. Therefore, to move bones back and forth at a joint, skeletal muscles must work in pairs. For example, the bicep and triceps muscles of the upper arm work as a pair. You can see how this pair of muscles works in Figure below . When the bicep muscle contracts, it bends the arm at the elbow. When the triceps muscle contracts, it straightens the arm. Q: Skeletal muscles must work in pairs to move bones back and forth at a joint because they can only do what? A:
OPTIONS:
- vibrate
- pull
- expand
- contract
contract

Answer the following question given this paragraph: Q: Which part of the axon has a higher membrane potential? A:
OPTIONS:
- muscular hillock
- biofilm hillock
- canals hillock
- axon hillock

Answer: axon hillock

Question: Answer the following question given this paragraph: Most millipedes are slower than centipedes and feed on leaf litter and loose organic material. They can be distinguished from centipedes by looking at the number of legs per body segment. Millipedes have two pairs of legs per body segment, while centipedes have a single pair of legs per body segment. Millipedes protect their eggs from predators by using a nest of hard soil. Millipedes are not poisonous. They lack the pair of fangs containing a poison gland that centipedes have. Q: How many pairs of legs does a millipede have per body segment? A:
OPTIONS:
- eight
- one
- four
- two
Answer: two

input: OPTIONS:
- the center
- the base
- the apex
- focus Now, answer this question: Answer the following question given this paragraph: Convex lenses are thicker in the middle than at the edges. They cause rays of light to converge, or meet, at a point called the focus (F). Convex lenses form either real or virtual images. It depends on how close an object is to the lens relative to the focus. Figure below shows how a convex lens works. You can also interact with an animated convex lens at the URL below. An example of a convex lens is a hand lens. Q: Convex lenses are thicker in the middle than at the edges so they cause rays of light to converge, or meet, at a point called what? A:
A:
output:
focus