Answer the following question given this paragraph: Mirrors are made from highly reflective metal that is applied to a curved or flat piece of glass. Converging mirrors can be used to focus light headlights, telescopes, satellite TV receivers, and solar cookers all rely on this principle. Q: What are made from highly reflective metal that is applied to a curved or flat piece of glass? A:
OPTIONS:
- lenses
- kaleidoscopes
- prisms
- mirrors
mirrors

Answer the following question given this paragraph: Acids have a sour taste. Lemons, vinegar, and sour candies all contain acids. Q: What substances contained in lemons, vinegar, and sour candies have a sour taste? A:
OPTIONS:
- proteins
- fats
- lactose
- acids

Answer: acids

Question: Answer the following question given this paragraph: Biochemical reactions are optimal at physiological temperatures. For example, most biochemical reactions work best at the normal body temperature of 98.6F. Many enzymes lose function at lower and higher temperatures. At higher temperatures, an enzyme's shape deteriorates. Only when the temperature comes back to normal does the enzyme regain its shape and normal activity. Q: Normal body temperature is ideal for most of what type of reactions? A:
OPTIONS:
- gas
- plasma
- theoretical
- biochemical
Answer: biochemical

input with options: Answer the following question given this paragraph: Osteoporosis is a disease in which bones lose mass and become more fragile than they should be. Osteoporosis also makes bones more likely to break. Two of the easiest ways to prevent osteoporosis are eating a healthy diet that has the right amount of calcium and vitamin D and to do some sort of weight-bearing exercise every day. Foods that are a good source of calcium include milk, yogurt, and cheese. Non-dairy sources of calcium include Chinese cabbage, kale, and broccoli. Many fruit juices, fruit drinks, tofu, and cereals have calcium added to them. It is recommended that teenagers get 1300 mg of calcium every day. For example, one cup (8 fl. oz. ) of milk provides about 300 mg of calcium, or about 30% of the daily requirement. Q: What is the disease in which bones lose mass and become more fragile and likely to break? A:
OPTIONS:
- arthritis
- tuberculosis
- fibrosis
- osteoporosis
output: osteoporosis

Q: Answer the following question given this paragraph: We obviously can't live without plants, but sometimes they cause us problems. Many plants are weeds. Weeds are plants that grow where people don't want them, such as gardens and lawns. They take up space and use resources, hindering the growth of more desirable plants. People often introduce plants to new habitats where they lack natural predators and parasites. The introduced plants may spread rapidly and drive out native plants. Many plants produce pollen , which can cause allergies. Plants may also produce toxins that harm human health (see Figure below ). Q: What are plants called that grow where you don't want them? A:

OPTIONS:
- grasses
- shrubs
- reeds
- weeds

A: weeds

Answer the following question given this paragraph: Trophic level 3 = secondary consumers that eat primary consumers. Q: What trophic level are secondary consumers (which eat primary consumers) considered to be? A:
OPTIONS:
- trophic level 5
- trophic level 4
- trophic level 2
- trophic level 3
trophic level 3